August 18 in History

The Senate of Finland combined the functions of cabinet and supreme court in the Grand Duchy of Finland from 1816 to 1917 and in independent Finland from 1917 to 1918.

The United States Exploring Expedition of 1838–1842 was an exploring and surveying expedition of the Pacific Ocean and surrounding lands conducted by the United States. The original appointed commanding officer was Commodore Thomas ap Catesby Jones. Funding for the original expedition was requested by President John Quincy Adams in 1828; however, Congress would not implement funding until eight years later. In May 1836, the oceanic exploration voyage was finally authorized by Congress and created by President Andrew Jackson.

An astronomer is a scientist in the field of astronomy who focuses on a specific question or field outside the scope of Earth. Astronomers study astronomical objects, such as stars, planets, moons, comets and galaxies, by some combination of observation and the application of astrophysical models. Examples of topics or fields astronomers study include planetary science, solar astronomy, the origin or evolution of stars, or the formation of galaxies. A related but distinct subject is physical cosmology, which studies the universe as a whole.

An astronomer is a scientist in the field of astronomy who focuses on a specific question or field outside the scope of Earth. Astronomers study astronomical objects, such as stars, planets, moons, comets and galaxies, by some combination of observation and the application of astrophysical models. Examples of topics or fields astronomers study include planetary science, solar astronomy, the origin or evolution of stars, or the formation of galaxies. A related but distinct subject is physical cosmology, which studies the universe as a whole.

Karl Jatho was a German inventor and aviation pioneer, performer and public servant of the city of Hanover.

The Nineteenth Amendment to the United States Constitution prohibits the United States and its states from denying the right to vote to citizens of the United States on the basis of sex, in effect recognizing the right of women to vote. The amendment was the culmination of a decades-long movement for women's suffrage in the United States, at both the state and national levels, and was part of the worldwide movement towards women's suffrage and part of the wider women's rights movement. The first women's suffrage amendment was introduced in Congress in 1878. However, a suffrage amendment did not pass the House of Representatives until May 21, 1919, which was quickly followed by the Senate, on June 4, 1919. It was then submitted to the states for ratification, achieving the requisite 36 ratifications to secure adoption, and thereby went into effect, on August 18, 1920. The Nineteenth Amendment's adoption was certified on August 26, 1920.

The Volksempfänger was a range of low-cost vacuum tube radio receivers produced in Germany during the 1930s. It was developed by engineer Otto Griessing at the request of Joseph Goebbels, the Reich Minister of Propaganda of the Nazi government.

The Thousand Islands International Bridge is an American-maintained international bridge system over the Saint Lawrence River connecting northern New York in the United States with southeastern Ontario in Canada. Constructed in 1937, with additions in 1959, the bridges span the Canada–US border in the middle of the Thousand Islands region. All bridges in the system carry two lanes of traffic, one in each direction, with pedestrian sidewalks.

Sukarno was an Indonesian statesman, activist, and revolutionary who served as the first president of Indonesia from 1945 to 1967.

The 1949 Kemi strike was a strike in July–August 1949 by the workers of Kemi Oy in the Northern Finnish town of Kemi. On August 18 the strike escalated on a violent clash called "Kemi Bloody Thursday" between strikers and local police, two workers were killed and several injured. Kemi strike is so far the last fatal political protest in Finland.

Vladimir Vladimirovich Nabokov, also known by the pen name Vladimir Sirin, was a Russian and American novelist, poet, translator, and entomologist. Born in Imperial Russia in 1899, Nabokov wrote his first nine novels in Russian (1926–1938) while living in Berlin, where he met his wife, Véra Nabokov (née Slonim). He achieved international acclaim and prominence after moving to the United States, where he began writing in English. Trilingual in Russian, English, and French, Nabokov became a U.S. citizen in 1945 and lived mostly on the East Coast before returning to Europe in 1961, where he settled in Montreux, Switzerland.

The civil rights movement was a social movement in the United States from 1954 to 1968 which aimed to abolish legalized racial segregation, discrimination, and disenfranchisement in the country, which most commonly affected African Americans. The movement had origins in the Reconstruction era in the late 19th century, and modern roots in the 1940s and in Mohandas Gandhi's nonviolent movement in India. After years of nonviolent protests and civil disobedience campaigns, the civil rights movement achieved many of its legislative goals in the 1960s, during which it secured new protections in federal law for the civil rights of all Americans, including the Civil Rights Act of 1964, the Voting Rights Act of 1965, and the Civil Rights Act of 1968.

The Battle of Long Tan took place in a rubber plantation near Long Tân, in Phước Tuy Province, South Vietnam, during the Vietnam War. The action was fought between Viet Cong (VC) and People's Army of Vietnam (PAVN) units and elements of the 1st Australian Task Force.

Aeroflot Flight A-13 was a scheduled Soviet domestic passenger flight from Baku, Azerbaijan to Fort-Shevchenko in Kazakhstan that crashed on 18 August 1973 shortly after takeoff, killing 56 of the 64 passengers and crew aboard. The Antonov An-24 had suffered an engine failure on takeoff and was attempting to return to the airport when it struck an oil rig cable at low altitude resulting in a crash. At the time, it was the second deadliest accident involving the An-24 and remains the second deadliest aviation accident in Azerbaijani history. The engine failure had been caused by the effect of continuous overheating on the performance of the blades.

The Union of Soviet Socialist Republics (USSR), also known as the Soviet Union, was a transcontinental country that spanned much of Eurasia from 1922 until its dissolution in 1991. It was the world's third-most populous country, largest by area, and bordered twelve countries. A diverse multinational state, it was organized as a federal union of national republics, the largest and most populous being the Russian Soviet Federative Socialist Republic. In practice, its government and economy were highly centralized. As a one-party state governed by the Communist Party, it was the flagship communist state. Its capital and largest city was Moscow.

Hurricane Alicia was a small but powerful tropical cyclone that caused significant destruction in the Greater Houston area of Southeast Texas in August 1983. Although Alicia was a relatively small hurricane, its track over the rapidly growing metropolitan area contributed to its $3 billion damage toll, making it the costliest Atlantic hurricane at the time. Alicia spawned from a disturbance that originated from the tail-end of a cold front over the northern Gulf of Mexico in mid-August 1983. The cyclone was named on August 14 when it became a tropical storm, and the combination of weak steering currents and a conducive environment allowed Alicia to quickly intensify as it drifted slowly westward. On August 17, Alicia became a hurricane and continued to strengthen, topping out as a Category 3 major hurricane as it made landfall on the southwestern end of Galveston Island. Alicia's eye passed just west of Downtown Houston as the system accelerated northwestwards across East Texas; Alicia eventually weakened into a remnant area of low pressure over Oklahoma on August 20 before they were last noted on August 21 over eastern Nebraska.

American International Airways Flight 808 was a cargo flight operated by American International Airways that crashed on 18 August 1993, while attempting to land at Leeward Point Field at the Guantanamo Bay Naval Base in Cuba. All three crew members on board survived with serious injuries.

The 2005 Java–Bali Blackout was a power outage across Java and Bali on 18 August 2005, affecting some 100 million people.

French International Security Assistance Force (ISAF) troops were ambushed by Afghan Taliban insurgents, with heavy casualties, in the Uzbin Valley outside the village of Spēṟ Kunday in the Surobi District of Kabul province in eastern Afghanistan on 18 August 2008.

The 2017 Turku attack occurred on 18 August 2017 at around 16:02–16:05 (UTC+3) when 10 people were stabbed in central Turku, Southwest Finland. Two women were killed in the attack and eight people sustained injuries.