April 18 in History

1783 — Three-Fifths Compromise: The first instance of black slaves in the United States of America being counted as three-fifths of persons (for the purpose of taxation), in a resolution of the Congress of the Confederation

This was later adopted in the 1787 Constitution.

April 18 spans 46 recorded events across recorded history, from 796 to 2026. Below is a curated digest of the most significant moments tied to this date.

By thisDay.info Editorial Team · April 18 — Wikipedia

Historical Events 46 events 796 – 2026

More major events on April 18

The featured story and these ranked highlights form a quick summary. Every recorded event remains available in the chronology below.

1797 War of the First Coalition: The Peace of Leoben is signed by Napoleon Bonaparte and Maximilian, Count of Merveldt, creating an armistice between France and Austria, setting the stage for the Treaty of Campo Formio and ending the War of the First Coalition.[citation needed] Source
1939 Robert Menzies, who became Australia's longest-serving prime minister, is elected as leader of the United Australia Party after the death of Prime Minister Joseph Lyons. Source
1864 Battle of Dybbøl: A Prussian-Austrian army defeats Denmark and gains control of Schleswig. Denmark surrenders the province in the following peace settlement. Source

Did you know

In 1783, Three-Fifths Compromise: The first instance of black slaves in the United States of America being counted as three-fifths of persons (for the purpose of taxation), in a resolution of the Congress of the Confederation. This was later adopted in the 1787 Constitution. This featured entry focuses on the immediate decision and its direct historical impact.

Did you know

The Three-fifths Compromise, also known as the Constitutional Compromise of 1787, was an agreement reached during the 1787 United States Constitutional Convention over the inclusion of slaves in counting a state's total population. This helps explain why the event mattered beyond the initial announcement.

Did you know

This count would determine the number of seats in the House of Representatives, the number of electoral votes each state would be allocated, and how much money the states would pay in taxes. This clarifies the institutional and public response around the event.

Did you know

Slave states wanted their entire population to be counted to determine the number of Representatives those states could elect and send to Congress. This shows how the event shaped policy and public communication in the same period.

Did you know

Free states wanted to exclude the counting of slave populations in slave states, since those slaves had no voting rights. This helps explain why the event mattered beyond the initial announcement.

King Æthelred I of Northumbria is murdered in Corbridge by a group led by his ealdormen, Ealdred and Wada.

The patrician Osbald is crowned, but abdicates within 27 days.

Æthelred, was the king of Northumbria from 774 to 779 and again from 790 until he was murdered in 796. He was the son of Æthelwald Moll and Æthelthryth and possibly became king while still a child after Alhred was deposed.

Wikipedia source

796

Peace of Ferrara between Republic of Venice, Duchy of Milan, Republic of Florence and House of Gonzaga: ending of the second campaign of the Wars in Lombardy fought until the Treaty of Lodi in 1454, which will then guarantee the conditions for the development of the Italian Renaissance.

Maritime republic in Italy (697–1797)

The Republic of Venice, officially the Most Serene Republic of Venice and traditionally known as La Serenissima, was a maritime republic with its capital in Venice, on the northeastern coast of Italy. Founded, according to tradition, in 697 by Paolo Lucio Anafesto, over the course of its 1,100 years of history it established itself as one of the major European commercial and naval powers. Initially extended in the Dogado area, during its history it annexed a large part of Northeast Italy, Istria, Dalmatia, the coasts of present-day Montenegro and Albania as well as numerous islands in the Adriatic and eastern Ionian seas. At the height of its expansion, between the 13th and 16th centuries, it also governed Crete, Cyprus, the Peloponnese, a number of Greek islands, as well as several cities and ports in the eastern Mediterranean.

Wikipedia source

1428

The cornerstone of the current St.

Peter's Basilica is laid.

A cornerstone is the first stone set in the construction of a masonry foundation. All other stones will be set in reference to this stone, thus determining the position of the entire structure.

Wikipedia source

1506

Bona Sforza is crowned as queen consort of Poland.

Queen of Poland and Grand Duchess of Lithuania from 1518 to 1548

Bona Sforza was Queen of Poland and Grand Duchess of Lithuania as the second wife of Sigismund I the Old, and Duchess of Bari and Rossano in her own right. She was a surviving member of the powerful House of Sforza, which had ruled the Duchy of Milan since 1450.

Wikipedia source

1518

Trial of Martin Luther begins its second day during the assembly of the Diet of Worms.

He refuses to recant his teachings despite the risk of excommunication.

Martin Luther was a German priest, theologian, author, hymnwriter, professor, and former Augustinian friar. Luther was the seminal figure of the Protestant Reformation, and his theological beliefs form the basis of Lutheranism. He is considered one of the most influential figures in Western and Christian history.

Wikipedia source

1521

Bostonians rise up in rebellion against Sir Edmund Andros.

Capital and largest city in Massachusetts, United States

Boston is the capital and most populous city of the U.S. state of Massachusetts. It serves as a cultural and financial center of New England, a region of the Northeastern United States. Boston has an area of 48.4 square miles (125 km2) and a population of 675,647 as of the 2020 census, making it the third-most populous city in the Northeastern United States after New York City and Philadelphia. The larger Greater Boston metropolitan statistical area had a population of 4.9 million in 2023, making it the largest metropolis in New England and the eleventh-largest in the United States.

Wikipedia source

1689

Real Academia de la Historia ("Royal Academy of History") is founded in Madrid.

Spanish institution that studies history

The Royal Academy of History is a Spanish institution in Madrid that studies history "ancient and modern, political, civil, ecclesiastical, military, scientific, of letters and arts, that is to say, the different branches of life, of civilisation, and of the culture of the Spanish people". Spanish people in this regard are understood to be citizens of the Kingdom of Spain or the indigenous people of its predecessors, or their descendants. The academy was established by royal decree of Philip V of Spain on 18 April 1738. Its official publication is the Boletín de la Real Academia de la Historia.

Wikipedia source

1738

American Revolution: The British Army advances up the Charles River in Massachusetts to destroy supplies of American militias, while Paul Revere and other riders rapidly warn the countryside.

Founding of the United States

The American Revolution (1765–1789) was a political movement in the Thirteen Colonies of Great Britain. It began as a rebellion and turned into a revolution eventually creating the sovereign United States, which was the outcome of the associated American Revolutionary War (1775-1783). The Second Continental Congress, as the provisional government, established the Continental Army and appointed George Washington as its commander-in-chief in 1775. The following year, the Congress passed the Lee Resolution on July 2nd and unanimously adopted the Declaration of Independence on July 4th. Throughout most of the war, the outcome appeared uncertain, but a 1781 victory by Washington and the Continental Army in the Siege of Yorktown led King George III and the Fox–North coalition in government to negotiate the cessation of colonial rule and the acknowledgment of American sovereignty, which was formalized in the Treaty of Paris, signed on September 3, 1783. The Constitution took effect in 1789 and the Bill of Rights was ratified in 1791.

Wikipedia source

1775

War of the First Coalition: The Peace of Leoben is signed by Napoleon Bonaparte and Maximilian, Count of Merveldt, creating an armistice between France and Austria, setting the stage for the Treaty of Campo Formio and ending the War of the First Coalition.[citation needed]

1792–1797 wars between France and European powers

The War of the First Coalition was a set of wars between a coalition of several European powers and France fought between 1792 and 1797. The coalition was only loosely allied and fought without much coordination; each power wanted to annex a different part of France should they defeat the French, something that never occurred.

Wikipedia source

1797

The University of Alabama is founded in Tuscaloosa, Alabama.

Public university in Tuscaloosa, Alabama, US

The University of Alabama is a public research university in Tuscaloosa, Alabama, United States. Established in 1820 and opened to students in 1831, the University of Alabama is the oldest and largest of the public universities in Alabama as well as the University of Alabama System. It is classified among "R1: Doctoral Universities – Very high research activity".

Wikipedia source

1831

American victory at the battle of Cerro Gordo opens the way for invasion of Mexico.

1847 battle of the Mexican–American War

The Battle of Cerro Gordo, or Battle of Sierra Gordo, was an engagement in the Mexican–American War on April 18, 1847. The battle saw Winfield Scott's United States troops outflank Antonio López de Santa Anna's larger Mexican army, driving it from a strong defensive position.

Wikipedia source

1847

The Spirits Book by Allan Kardec is published, marking the birth of Spiritualism in France.

1857 publication about Spiritism by Allan Kardec

The Spirits' Book is part of the Spiritist Codification, and is regarded as one of the five fundamental works on Spiritism. It was published by the French educator Hippolyte Léon Denizard Rivail, under the pen name of Allan Kardec on April 18, 1857. It was the first and remains the most important Spiritist book, because it addresses in first hand all questions developed subsequently by Allan Kardec.

Wikipedia source

1857

Battle of Dybbøl: A Prussian-Austrian army defeats Denmark and gains control of Schleswig.

Denmark surrenders the province in the following peace settlement.

The Battle of Dybbøl was the key battle of the Second Schleswig War, fought between Denmark and Prussia. The battle was fought on the morning of 18 April 1864, following a siege that began on 2 April. Denmark suffered a severe defeat which – with the Prussian capture of the island of Als – ultimately decided the outcome of the war, forcing Danish cession of the duchies of Schleswig and Holstein.

Wikipedia source

1864

The Greco-Turkish War is declared between Greece and the Ottoman Empire.

Conflict over the status of Crete

The Greco-Turkish War of 1897 or the Ottoman-Greek War of 1897 was fought between the Kingdom of Greece and the Ottoman Empire. Its immediate cause involved the status of the Ottoman province of Crete, whose Greek-majority population had long desired union with Greece. Despite the Ottoman victory on the field, an autonomous Cretan State under Ottoman suzerainty was established the following year, with Prince George of Greece and Denmark as its first High Commissioner.

Wikipedia source

1897

The St.

Andrew's Ambulance Association is granted a royal charter by Queen Victoria.

St Andrew's First Aid is a charity based in Scotland. Founded in 1882, St Andrew's Ambulance Association was Scotland's first ambulance service. From 1967, the St. Andrew's Scottish Ambulance Service was the sole contractor for the provision of the ambulance service, until 1974, when the National Health Service (NHS) was reorganised and St Andrew's ambulance role was absorbed into the Scottish Ambulance Service. The St Andrew's association continued as a provider of first aid services and training, changing their trading name.

Wikipedia source

1899

The 7.5 Mw Guatemala earthquake shakes Guatemala with a maximum Mercalli intensity of VIII (Severe), killing between 800 and 2,000.

Severe earthquake in western Guatemala

The 1902 Guatemala earthquake occurred on April 18 at 8:23 pm with a moment magnitude of 7.5 and a maximum Mercalli intensity of VIII (Severe). The rupture was initiated at a depth of 25 km (16 mi) and the duration was 1 to 2 minutes.

Wikipedia source

1902

The 7.9 Mwearthquake and fire destroy much of San Francisco, California, killing more than 3,000 people, making one of the worst natural disasters in American history.

Earthquake in California

A magnitude 7.9 earthquake struck the coast of Northern California at 05:12 am Pacific Standard Time on Wednesday, April 18, 1906. With a maximum Mercalli intensity of XI (Extreme), it created high-intensity shaking from Eureka on the North Coast to the Salinas Valley, an agricultural region to the south of the San Francisco Bay Area.

Wikipedia source

1906

Joan of Arc is beatified in Rome.

French folk heroine and saint (1412–1431)

Joan of Arc is a patron saint of France, honored as a defender of the French nation for her role in the siege of Orléans and her insistence on the coronation of Charles VII of France during the Hundred Years' War. Stating that she acted under divine guidance, she became a military leader who gained recognition as a savior of France.

Wikipedia source

1909

The Cunard liner RMS Carpathia brings 705 survivors from the RMS Titanic to New York City.

British cruise line

The Cunard Line is a British shipping company and an international cruise line based at Carnival House at Southampton, England, operated by Carnival UK and owned by Carnival Corporation. Since 2011, Cunard and its four ships have been registered in Hamilton, Bermuda.

Wikipedia source

1912

World War I: French pilot Roland Garros is shot down and glides to a landing on the German side of the lines.

Global conflict from 1914 to 1918

World War I, or the First World War, also known as the Great War, was a global conflict between two coalitions: the Allies and the Central Powers. Major theatres of war included Europe and the Middle East, and well as parts of Africa and the Asia-Pacific. One of the deadliest conflicts in history, World War I resulted in an estimated 15 to 22 million deaths, including in mass war crimes against civilians and genocides. The conflict saw important developments in weaponry, including the first large-scale use of machine guns, artillery, aircraft, chemical weapons, and tanks, and was a major factor in the deadly Spanish flu pandemic.

Wikipedia source

1915

World War I: During a mine warfare in high altitude on the Dolomites, the Italian troops conquer the Col di Lana held by the Austrian army.

Explosives used by tunnelling units

The mines on the Italian front during the First World War comprised a series of underground explosive charges of varying sizes, secretly planted between 1916 and 1918 by Austro-Hungarian and Italian tunneling units beneath their enemy's lines along the Italian front in the Dolomite section of the Alps.

Wikipedia source

1916

A fire kills 118 people at a wooden church in the small Romanian town of Costești, most of them schoolchildren, after starting during Good Friday services.

1930 fire in Romania

In 1930, a devastating fire destroyed the wooden church in Costești, AD, a small town in Argeș County, Romania, and killed 118 people, mostly primary school and high school students, the youngest of them being an 8-year-old girl. The event was also known in Romanian press as the Black Easter.

Wikipedia source

1930

Superman debuts in Action Comics #1 (cover dated June 1938).

DC Comics superhero

Superman is a superhero created by writer Jerry Siegel and artist Joe Shuster, first appearing in issue #1 of Action Comics, published in the United States on April 18, 1938. Superman has been regularly published in American comic books published by DC Comics since then, and has been adapted to other media including radio serials, novels, films, television shows, theater, and video games. Superman is the archetypal superhero: he wears an outlandish costume, uses a codename, and fights evil and averts disasters with the aid of extraordinary abilities. Although there are earlier characters who arguably fit this definition, it was Superman who popularized the superhero genre and established its conventions. He was the best-selling superhero in American comic books up until the 1980s and remains the highest grossing superhero if one considers the entire history of the genre.

Wikipedia source

1938

Robert Menzies, who became Australia's longest-serving prime minister, is elected as leader of the United Australia Party after the death of Prime Minister Joseph Lyons.

Prime Minister of Australia (1939–1941; 1949–1966)

Sir Robert Gordon Menzies was an Australian politician and lawyer who served as the 12th prime minister of Australia from 1939 to 1941 and from 1949 to 1966. He held office as the leader of the United Australia Party (UAP) in his first term, and subsequently as the inaugural leader of the Liberal Party of Australia in his second. He was the member of parliament (MP) for the Victorian division of Kooyong from 1934 to 1966. He is the longest-serving prime minister in Australian history.

Wikipedia source

1939

World War II: The Doolittle Raid on Japan: Tokyo, Yokohama, Kobe and Nagoya are bombed.

Global conflict (1939–1945)

World War II, or the Second World War, was a global conflict between two coalitions: the Allies and the Axis powers. Nearly all of the world's countries participated, with many engaging in total war on an unprecedented scale. World War II was the deadliest conflict in history, causing the deaths of 60 to 75 million people, a majority of whom were civilians. Millions died as a result of massacres, starvation, disease, and genocides including the Holocaust. After the Allied victory, Germany, Austria, Japan, and Korea were occupied, and German and Japanese leaders were tried for war crimes.

Wikipedia source

1942

Pierre Laval becomes Prime Minister of Vichy France.

French politician (1883–1945)

Pierre Jean Marie Laval was a French politician. He served as Prime Minister of France three times: 1931–1932 and 1935–1936 during the Third Republic, and 1942–1944 during Vichy France. After the war, Laval was tried as a Nazi collaborator and executed for treason.

Wikipedia source

1942

World War II: Operation Vengeance, Admiral Isoroku Yamamoto is killed when his aircraft is shot down by U.S.

fighters over Bougainville Island.

Operation Vengeance was the American military operation to kill Admiral Isoroku Yamamoto of the Imperial Japanese Navy on 18 April 1943 during the Solomon Islands campaign in the Pacific Theater of World War II. Yamamoto, commander of the Combined Fleet of the Imperial Japanese Navy, was killed near Bougainville Island when his G4M1 transport aircraft was shot down by United States Army Air Forces fighter aircraft operating from Kukum Field on Guadalcanal.

Wikipedia source

1943

World War II: Over 1,000 bombers attack the small island of Heligoland, Germany.

Heavy ground attack aircraft

A bomber is a military combat aircraft that utilizes air-to-ground weaponry to drop bombs, launch torpedoes, or deploy air-launched cruise missiles.

Wikipedia source

1945

Italian resistance movement: In Turin, despite the harsh repressive measures adopted by Nazi-fascists, a great pre-insurrectional strike begins.

Italian combatant organizations opposed to Nazi-Fascism

The Italian Resistance, or simply La Resistenza, consisted of all the Italian resistance groups who fought the occupying forces of Nazi Germany and the fascist collaborationists of the Italian Social Republic (RSI) in Italy during the latter part of the Second World War, from 1943 to 1945. As a diverse anti-fascist and anti-Nazist movement and organisation, the Resistenza opposed Nazi Germany and its Fascist puppet state regime, the Italian Social Republic, which the Germans created following the Nazi German invasion and military occupation of Italy by the Wehrmacht and the Waffen-SS from 8 September 1943 until 25 April 1945.

Wikipedia source

1945

The International Court of Justice holds its inaugural meeting in The Hague, Netherlands.

Judicial organ of the United Nations

The International Court of Justice, or colloquially the World Court, is the principal judicial organ of the United Nations (UN). It settles legal disputes submitted to it by states and provides advisory opinions on legal questions referred to it by other UN organs and specialized agencies. The ICJ is the only international court that adjudicates general disputes between countries, with its rulings and opinions serving as primary sources of international law. It is one of the six principal organs of the United Nations.

Wikipedia source

1946

Jackie Robinson makes his regular season debut for the Montreal Royals of the International League, to make them the first integrated modern professional baseball team.

American baseball player (1919–1972)

Jack Roosevelt Robinson was an American professional baseball player who was the first African American to play in Major League Baseball (MLB) in the modern era. Robinson broke the color line when he started at first base for the Brooklyn Dodgers on April 15, 1947. The Dodgers signing Robinson heralded the end of racial segregation in professional baseball, which had relegated black players to the Negro leagues since the 1880s.

Wikipedia source

1946

The Operation Big Bang, the largest non-nuclear man-made explosion to that time, destroys bunkers and military installations on the North Sea island of Heligoland, Germany.

1947 destruction of bunkers on Heligoland

Operation Big Bang or British Bang was the explosive destruction of bunkers and other military installations on the island of Heligoland. The explosion used 7400 tons of surplus World War II ammunition, which was placed in various locations around the island and detonated at 1 p.m. on 18 April 1947 by the Royal Navy. The energy released was 13 terajoule, or about 3.2 kilotons of TNT equivalent making it the largest artificial non-nuclear explosion at that time. The objective of the blast was to destroy the bunkers and military installations on the North Sea island of Heligoland, but due to the enormous amount of explosives it was foreseen that the entire island might be destroyed. The porous sandstone that makes up the island allowed the blast wave to escape so only the southern tip of the island was destroyed, but there was considerable damage to the northern tip.

Wikipedia source

1947

The Republic of Ireland Act comes into force, declaring Éire to be a republic and severing Ireland's "association" with the Commonwealth of Nations.

Law establishing the Republic of Ireland and severing political ties to the UK

The Republic of Ireland Act 1948 is an Act of the Oireachtas which declares that the description of Ireland is the Republic of Ireland, and vests in the president of Ireland the power to exercise the executive authority of the state in its external relations, on the advice of the Government of Ireland. The Act was signed into law on 21 December 1948 and came into force on 18 April 1949, Easter Monday, the 33rd anniversary of the beginning of the Easter Rising.

Wikipedia source

1949

Gamal Abdel Nasser seizes power in Egypt.

President of Egypt from 1956 to 1970

Gamal Abdel Nasser Hussein was an Egyptian military officer and revolutionary who served as the second president of Egypt from 1954 until his death in 1970. Nasser led the Egyptian revolution of 1952 and introduced far-reaching land reforms the following year. Following a 1954 assassination attempt by a Muslim Brotherhood member, he cracked down on the organization, put President Mohamed Naguib under house arrest and assumed executive office. He was formally elected president in June 1956.

Wikipedia source

1954

Twenty-nine nations meet at Bandung, Indonesia, for the first Asian-African Conference.

Capital city of West Java, Indonesia

Bandung is the capital city of the West Java province of Indonesia. Located on the western highland of Java island, it has one of the coolest climates compared to other provincial capitals in Indonesia, situated 708 meters above sea level, approximately 135 kilometres southeast of Jakarta. Bandung lies in a river basin surrounded by volcanic mountains that provide a natural defense system, which was the primary reason for the Dutch East Indies government's plan to move the capital from Batavia to Bandung.

Wikipedia source

1955

East African Airways Flight 720 crashes during a rejected takeoff from Addis Ababa Bole International Airport in Addis Ababa, Ethiopia, killing 43.

1972 aviation accident

East African Airways Flight 720 (EC720) was an international scheduled passenger flight, operated by jointly operated East African Airways, routing from Kenya via Ethiopia and Italy to the United Kingdom with a Vickers VC10. On 18 April 1972, the aircraft burst into flames and crashed while taking off from Addis Ababa Bole International Airport, killing 43 out of 107 occupants on board. It is the third deadliest aircraft accident on Ethiopian soil.

Wikipedia source

1972

The Republic of Zimbabwe (formerly Rhodesia) comes into being, with Canaan Banana as the country's first President.

The Zimbabwean dollar replaces the Rhodesian dollar as the official currency.

Zimbabwe, officially the Republic of Zimbabwe, is a landlocked country in Southeast Africa, between the Zambezi and Limpopo River, bordered by South Africa to the south, Botswana to the southwest, Zambia to the north, and Mozambique to the east. The capital and largest city is Harare, and the second largest is Bulawayo.

Wikipedia source

1980

The town of Elmore City, Oklahoma holds its first dance in the town's history.

Town in Oklahoma, US

Elmore City is a town in Garvin County, Oklahoma, United States. This town is 58 miles south of Oklahoma City. The population was 738 at the time of the 2020 census, up from 697 at the 2010 census. It was named after J. O. Elmore.

Wikipedia source

1980

The United States launches Operation Praying Mantis against Iranian naval forces in the largest naval battle since World War II.

1988 US attack on Iran in the Iran-Iraq War

Operation Praying Mantis was the 18 April 1988 attack by the United States on Iranian naval targets in the Persian Gulf in retaliation for the mining of a U.S. warship four days earlier. It took place during the US presidency of Ronald Reagan and the rule of Supreme Leader of Iran Ruhollah Khomeini.

Wikipedia source

1988

In Israel John Demjanjuk is sentenced to death for war crimes committed in World War II, although the verdict is later overturned.

Ukrainian guard at Nazi death camps (1920–2012)

John Demjanjuk, was a Trawniki and Nazi camp guard at Sobibor extermination camp, Majdanek, and Flossenbürg. Demjanjuk became the center of global media attention in the 1980s, when he was tried and convicted in Israel after being identified as "Ivan the Terrible", a notoriously cruel watchman at Treblinka extermination camp. Demjanjuk was sentenced to death by hanging in 1988. In 1993, the verdict was overturned. Shortly before his death, he was tried and convicted in the Federal Republic of Germany as an accessory to the 28,060 murders that occurred during his service at Sobibor.

Wikipedia source

1988

The Israeli military commits the Qana massacre in a deliberate shelling of a United Nations compound near the village of Qana in southern Lebanon, killing 106 Lebanese civilians who were taking shelter there and wounding over 100 more.

1996 attack on civilians by the Israeli Defense Forces in Qana, Lebanon

The Qana massacre took place on April 18, 1996, near Qana, a village in then Israeli-occupied Southern Lebanon, when the Israeli military fired artillery shells at a United Nations compound, which was sheltering around 800 Lebanese civilians, killing 106 and injuring around 116. Four Fijian United Nations Interim Force in Lebanon soldiers were also seriously injured.

Wikipedia source

1996

King Mswati III of Swaziland announces that his country's name will change to Eswatini.

Title of the male monarch of Eswatini

The King of Eswatini, officially Ngwenyama, is the title of the male monarch and head of state of Eswatini. The King (Ngwenyama) reigns together with the Queen Mother (Indlovukazi), a spiritual leadership position held by the Ngwenyama's mother or another female royal of high status.

Wikipedia source

2018

Anti-government protests start in Nicaragua.

21st-century protests in Nicaragua

Protests against Daniel Ortega, Co-president of Nicaragua, began in 2014, when the construction of the Nicaragua Canal was about to begin, and several hundred protesters blocked roads and clashed with police during the groundbreaking of the canal. Tens of thousands of Nicaraguans began to protest against Ortega for what they believe to be a corrupt electoral system.

Wikipedia source

2018

A redacted version of the Mueller report is released to the United States Congress and the public.

2019 U.S. government report on Russian interference in the 2016 election

Report On The Investigation Into Russian Interference In The 2016 Presidential Election, more commonly known as the Mueller report, is the official report documenting the findings and conclusions of former Special Counsel Robert Mueller's investigation into Russian efforts to interfere in the 2016 United States presidential election, allegations of conspiracy or coordination between Donald Trump's presidential campaign and Russia, and allegations of obstruction of justice. The report was submitted to Attorney General William Barr on March 22, 2019, and a redacted version of the 448-page report was publicly released by the Department of Justice (DOJ) on April 18, 2019. It is divided into two volumes. The redactions from the report and its supporting material were placed under a temporary "protective assertion" of executive privilege by then-President Trump on May 8, 2019, preventing the material from being passed to Congress, despite earlier reassurance by Barr that Trump would not exert privilege.

Wikipedia source

2019

Seven people are killed and fourteen others are injured in a mass shooting in Kyiv, Ukraine

Mass shooting in Kyiv, Ukraine

On 18 April 2026, a mass shooting occurred in the Demiivka neighborhood of the Holosiivskyi District of Kyiv, Ukraine, when a man opened fire on his neighbours and passers-by in the street before taking hostages inside a supermarket. He was shot and killed by police in a shootout when the Rapid Operational Response Unit (KORD) stormed the supermarket. Eight people were killed, including the perpetrator, and thirteen others were injured.

Wikipedia source

2026

April 18 in History

1783 — Three-Fifths Compromise: The first instance of black slaves in the United States of America being counted as three-fifths of persons (for the purpose of taxation), in a resolution of the Congress of the Confederation

More major events on April 18

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