Famous Birthdays on April 15

Leonhard Euler was a Swiss polymath who was active as a mathematician, physicist, astronomer, logician, geographer, music theorist and engineer. He founded the studies of graph theory and topology and made influential discoveries in many other branches of mathematics, such as analytic number theory, complex analysis, and infinitesimal calculus. He also introduced much of modern mathematical terminology and notation, including the notion of a mathematical function. He is known for his work in mechanics, fluid dynamics, optics, astronomy, and music theory. Euler has been called a "universal genius" who "was fully equipped with almost unlimited powers of imagination, intellectual gifts and extraordinary memory". He spent most of his adult life in Saint Petersburg, Russia, and in Berlin, then the capital of Prussia.

Claude Joséphine Rose "Claudia" Cardinale was an Italian-Tunisian actress. Regarded as one of the leading female figures of Italian cinema, alongside Sophia Loren, Monica Vitti, Silvana Mangano, Anna Magnani, and Gina Lollobrigida, she achieved international recognition during a career spanning more than six decades. Celebrated in the 1960s as "the most beautiful woman in the world" and widely considered a sex symbol of the era, Cardinale appeared in more than 175 films, primarily in Italy and France, across genres including comedy, drama, spaghetti westerns, and historical epics. She collaborated with acclaimed directors such as Federico Fellini, Sergio Leone, and Werner Herzog, and several of her films are regarded as significant works in the history of cinema. At the time of her death, she was one of the last surviving stars from the Golden Age of European cinema.

Michael Jerome Cooper, nicknamed "Coop", is an American basketball coach and former professional player who is the head coach of the Cal State Los Angeles Golden Eagles men's basketball team. He played for the Los Angeles Lakers during his entire career in the National Basketball Association (NBA), winning five NBA championships with the Lakers during their Showtime era. He was an eight-time selection to the NBA All-Defensive Team, including five times on the first team. He was named the NBA Defensive Player of the Year in 1987. Cooper was inducted into the Naismith Memorial Basketball Hall of Fame in 2024. The Lakers retired his No. 21 jersey in 2025.

Alla Borisovna Pugacheva is a Russian singer and songwriter. Her career began in 1965 and continues to this day, although she retired from performing in 2010 after the international concert tour "Dreams of Love". For her "clear mezzo-soprano and a full display of sincere emotions", she enjoys an iconic status across the former Soviet Union as the most successful Soviet performer in terms of record sales and popularity. For several decades, Pugacheva was a sex symbol, a style icon, an inspiration for Soviet women and a heroine of Russian tabloids. In the media, Pugacheva has been called "the Queen of Russian pop music". Pugacheva is one of the few Russian performers who has achieved international success, along with Anna Netrebko and t.A.T.u.

Antonio Cromartie Sr. is an American former professional football player who was a cornerback in the National Football League (NFL) for eleven seasons. He played college football for the Florida State Seminoles and was selected in the first round by the San Diego Chargers in the 2006 NFL draft. He was selected to four Pro Bowls and was a first-team All-Pro in 2007 after leading the league in interceptions. He also played for the Arizona Cardinals, New York Jets and Indianapolis Colts. Cromartie holds the record for the longest scoring play in NFL history after returning a missed field goal 109 yards for a touchdown in 2007. After his playing career, he was a graduate assistant for the Texas A&M Aggies.

William Marshall Mason, also nicknamed "Big Willie", is a former professional rugby league footballer who played in the 2000s and 2010s. An Australia and Tonga international and New South Wales State of Origin representative forward, he played in the National Rugby League for the Canterbury-Bankstown Bulldogs, the Sydney Roosters, the North Queensland Cowboys, the Newcastle Knights and the Manly-Warringah Sea Eagles. Mason also played in the Super League for English club Hull Kingston Rovers and French club, the Catalans Dragons. He also played rugby union in the Top 14 for French club RC Toulonnais. During his career Mason was involved in a number of controversial off-field incidents which have received media publicity due to his high profile in the NRL.

Asa Philip Randolph was an American railwayman, trade unionist and civil rights activist. In 1925, he organized and led the Brotherhood of Sleeping Car Porters, the first successful African-American-led labor union. In the early Civil Rights Movement and the Labor Movement, Randolph was a prominent voice. His continuous agitation with the support of fellow labor rights activists against racist labor practices helped lead President Franklin D. Roosevelt to issue Executive Order 8802 in 1941, banning discrimination in the defense industries during World War II. The group then successfully maintained pressure, so that President Harry S. Truman proposed a new Civil Rights Act and issued Executive Orders 9980 and 9981 in 1948, promoting fair employment and anti-discrimination policies in federal government hiring, and ending racial segregation in the armed services.

Elizabeth Catlett, born as Alice Elizabeth Catlett, also known as Elizabeth Catlett Mora was an American and Mexican sculptor and graphic artist best known for her depictions of the Black-American experience in the 20th century, which often focused on the female experience. She was born and raised in Washington, D.C., to parents working in education, and was the grandchild of formerly enslaved people. It was difficult for a black woman then to pursue a career as a working artist. Catlett devoted much of her career to teaching. However, a fellowship awarded to her in 1946 allowed her to travel to Mexico City, where she settled and worked with the Taller de Gráfica Popular for twenty years and became head of the sculpture department for the Escuela Nacional de Artes Plásticas. In the 1950s, her main means of artistic expression shifted from print to sculpture, though she never gave up the former.

Dawn Jeannine Wright is an American geographer and oceanographer. She is a leading authority in the application of geographic information system (GIS) technology to the field of ocean and coastal science and played a key role in creating the first GIS data model for the oceans. Wright is Chief Scientist of the Environmental Systems Research Institute (Esri). She has also been a professor of geography and oceanography at Oregon State University since 1995 and is a former Oregon Professor of the Year as named by the Council for the Advancement and Support of Education and the Carnegie Foundation for the Advancement of Teaching. Wright was the first Black female to dive to the ocean floor in the deep submersible ALVIN. On July 12, 2022, she became the first and only Black person to dive to Challenger Deep, the deepest point on Earth, and to successfully operate a side scan sonar at full-ocean depth.

John Lynch Phillips is a NASA astronaut. Phillips is also a Naval Aviator and retired captain, United States Navy Reserve. Phillips has received numerous awards and special honors. He is a National Merit Scholar, graduated 2nd in his class of 906 people at the U.S. Naval Academy in 1972. Phillips has also been awarded the NASA Space Flight Medal, NASA Distinguished Service Medal, the Gagarin Medal and several others. Phillips has logged over 4,400 flight hours and 250 aircraft carrier landings, flying the A-7 Corsair II carrier-based light attack aircraft while on active duty in the Regular Navy and subsequently during his time as a Navy Reservist from 1982 to 2002. At the time of his retirement, Phillips had retained the rank of captain.

Joice Runaida Mujuru, also known by her nom-de-guerre Teurai Ropa Nhongo, is a Zimbabwean revolutionary and politician who served as Vice-president of Zimbabwe from 2004 to 2014. Previously, she had served as a government minister and as vice-president of ZANU–PF. She was married to Solomon Mujuru until his death in 2011 and was long considered a potential successor to President Robert Mugabe, but in 2014 she was denounced for allegedly plotting against Mugabe. As a result of the accusations against her, Mujuru lost both her post as vice-president and her position in the party leadership. She was expelled from the party a few months later, after which she formed the new Zimbabwe People First party.

Arturo Gatti was a Canadian professional boxer who competed from 1991 to 2007. He was a world champion in two weight classes, having held the International Boxing Federation (IBF) junior lightweight title from 1995 to 1998, and the World Boxing Council (WBC) super lightweight title from 2004 to 2005. He also participated in The Ring magazine's Fight of the Year a total of four times. He announced his retirement on July 14, 2007. After his death in 2009, Gatti was inducted into the International Boxing Hall of Fame on December 10, 2012, in his first year of eligibility, becoming the tenth Canadian boxer to be so inducted.

Cornelia Arnolda Johanna "Corrie" ten Boom was a Dutch watchmaker and later a Christian writer and public speaker, who worked with her father, Casper ten Boom, her sister Betsie ten Boom and other family members to help many Jewish people escape from the Nazis during the Holocaust in World War II by hiding them in her home. They were caught, and she was arrested and sent to the Ravensbrück concentration camp. Her most famous book, The Hiding Place, is an autobiography that recounts the story of her family's efforts and how she found and shared hope in God while she was imprisoned at the concentration camp.

Mahdi Abdul-Rahman was an American professional basketball player and college basketball coach. He played in college for the UCLA Bruins and was a member of their first national championship team in 1964. He also won a gold medal that year with the US national team at the 1964 Summer Olympics. Hazzard began his pro career in the National Basketball Association (NBA) with the Los Angeles Lakers, who selected him a territorial pick in the 1964 NBA draft. He was named an NBA All-Star with the Seattle SuperSonics in 1968. After his playing career ended, he was the head coach at UCLA during the 1980s.

Leonardo di ser Piero da Vinci was an Italian polymath of the High Renaissance who was active as a painter, draughtsman, engineer, scientist, theorist, sculptor, and architect. While his fame initially rested on his achievements as a painter, he has also become known for his notebooks, in which he made drawings and notes on a variety of subjects, including anatomy, astronomy, botany, cartography, painting, and palaeontology. Leonardo is widely regarded as a genius who epitomised the Renaissance humanist ideal, and his collective works contributed to the development of European art to an extent rivalled only by that of his younger contemporary Michelangelo.

Hans Georg Conried Jr. was an American actor and comedian. Among his numerous roles, he voiced Captain Hook and George Darling in Walt Disney's Peter Pan (1953), Snidely Whiplash in Jay Ward's Dudley Do-Right cartoons, and Professor Waldo P. Wigglesworth in Ward's Hoppity Hooper cartoons. Conried was host of Ward's live-action Fractured Flickers show, and had a recurring role as Professor Kropotkin in the radio and film versions of My Friend Irma. He also appeared as Uncle Tonoose on the Danny Thomas sitcom Make Room for Daddy, twice on I Love Lucy, and as the Mad Hatter in The Alphabet Conspiracy (1959).

Kenneth Lee Lay was an American businessman and political donor who was the founder, chief executive officer and chairman of Enron. He was heavily involved in Enron's accounting scandal that unraveled in 2001 into the largest bankruptcy ever to that date. Lay was indicted by a grand jury and was found guilty of 10 counts of securities fraud at trial. Lay died in July 2006 while vacationing in his house near Aspen, Colorado, three months before his scheduled sentencing. A preliminary autopsy reported Lay died of a heart attack caused by coronary artery disease. His death resulted in a vacated judgment.

Daniel Gonzalo Pino is an American actor who starred as Detective Scotty Valens on the CBS series Cold Case from 2003 to 2010, and as NYPD Detective Nick Amaro in the long-running NBC crime drama Law & Order: Special Victims Unit from 2011 to 2015. In 2002, he appeared in London's West End in Up for Grabs with Madonna. In May 2003, Pino played Desi Arnaz in a CBS special on the life of Lucille Ball, Lucy. He played drug cartel leader Miguel Galindo on Mayans M.C. which airs on FX, and FBI agent John Bishop in procedural crime drama Gone.

Linda Perry is an American singer, songwriter, musician, and record producer. She was the lead singer, primary songwriter, and guitarist of 4 Non Blondes, including their 1993 hit "What's Up?". She has since founded two record labels and composed and produced songs for other artists, which include: "Beautiful" by Christina Aguilera; "What You Waiting For?" by Gwen Stefani; and "Get the Party Started" by Pink. Perry also contributed to albums by Adele, Alicia Keys, and Courtney Love, as well as signing and distributing James Blunt in the United States. Perry was inducted into the Songwriters Hall of Fame in 2015.