April 11 is the 101st day of the year (102nd in leap years) according to the Gregorian calendar. There are 264 days remaining until the end of the year.
Events
- 491 - Flavius Anastasius becomes Byzantine Emperor.
- 1899 - Spain ceded Puerto Rico to the United States.
- 1905 - Einstein explained his Theory of Relativity.
- 1919 – The International Labor Organization (ILO) is established.
- 1919 - Singapore declared its independence from the United Kingdom of Great Britain and Ireland.
- 1919 – Kazım Karabekir Pasha, who was appointed to the 15th Corps Command, visited Mustafa Kemal Pasha at his home in Şişli.
- 1920 – Damat Ferid published a statement against Kuva-yi Milliye.
- 1920 – Parliament was closed.
- 1930 – A large women's rally was held in Sultanahmet. At the rally organized by the Turkish Women's Union, “the right to vote and be elected to women” was celebrated.
- 1957 – Ratip Tahir Burak, owner of Halk newspaper, was arrested for a cartoon.
- 1963 – Turkey Agricultural Equipment Authority (TZDK) Adapazarı Tractor Factory was established.
- 1965 - Hurricanes in the mid-western states of the USA killed 256 people.
- 1967 – The play "Women Say I-Ih" was banned in Istanbul. The leading actress Lale Oraloğlu started a hunger strike.
- 1970 - Apollo 13 was launched into space.
- 1972 – After November 1967, B-52s began bombing Vietnam again for the first time.
- 1975 – The construction of the Iraqi leg of the Turkish-Iraqi oil pipeline was started.
- 1975 – The law on the establishment of Uludağ Universities in Bursa, Fırat in Elazığ, Ondokuz Mayıs in Samsun and Selçuk Universities in Konya came into force.
- 1980 – Writer Ümit Kaftancıoğlu was killed in Istanbul. Kaftancıoğlu was a programmer at Istanbul Radio Education-Culture Broadcasts. In his novels, the author describing the Eastern Anatolian region gave importance to the struggle of man with man and nature. He won the Milliyet – Karacan Award with his “Hakullah” interview, in which he questioned the institution of dedeism in Alevism.
- 1983 – In the explosion during the repair works of the İhsaniye quarry of the Kozlu Coal Production Zone in Zonguldak, 10 miners, including an engineer, were killed and nine others injured.
- 1991 – The Anti-Terrorism Act was passed.
- 1995 – Within the scope of the Southeastern Anatolia Project (GAP), the first water was supplied to the Harran Plain.
- 1997 – It was decided to give the Atatürk International Peace Prize to the Turkish Peace Corps serving in Bosnia.
- 2001 – 43 people were killed and 100 injured in a clash between supporters in a game in South Africa.
- 2001 – The match played between Australia and American Samoa, Australia won 31-0.
- 2002 – A Synagogue was bombed in Tunisia; 21 people died.
- 2006 - Iranian President Mahmoud Ahmadinejad announced that they were enriching uranium.
- 2006 – In Italy, famous mafia boss Bernardo Provenzano, who has been missing for 43 years, was caught drinking vegetable soup with a bodyguard in the village of Corleone.
- 2009 – The Giant-Youth Union was founded.
- 2010 – The first YGS Higher Education Transition Exam was held.
Births
- 145 – Septimius Severus, Roman Emperor (d. 211)
- 1611 – Karl Eusebius, Prince of Liechtenstein (d. 1684)
- 1616 – Cemre Sultan, daughter of Ahmed I and Kösem Sultan (d. 1620)
- 1755 – James Parkinson, English physician (d. 1824)
- 1806 – Pierre Guillaume Frédéric le Play, French mining engineer and sociologist (d. 1882)
- 1830 – John Douglas, English architect (d. 1911)
- 1869 – Gustav Vigeland, Norwegian sculptor (d. 1943)
- 1905 – Attila József, Hungarian poet (d. 1937)
- 1926 – Erwin Frühbauer, Austrian politician (d. 2010)
- 1928 – Ethel Kennedy, wife of Robert F. Kennedy
- 1929 – Kenneth Z. Altshuler, American psychologist, psychoanalyst, and academic (d. 2021)
- 1930 – Anton Szandor LaVey, American occultist author and founder of the Church of Satan (d. 1997)
- 1931 – Maria Dolores Malumbres, Spanish pianist, music educator, and composer (d. 2019)
- 1931 – Mustafa Dağistanlı, Turkish wrestler and 1956, 1960 Summer Olympics champion (d. 2022)
- 1935 – Richard Kuklinski, American serial killer (d. 2006)
- 1936 – Pekcan Koşar, Turkish theater and cinema artist (d. 2005)
- 1938 – Mohammed Ibrahim Kadri, Afghan wrestler
- 1946 – Chris Burden, American performance artist (d. 2015)
- 1947 Peter Riegert, American actor
- 1953 Andrew Wiles, English mathematician
- 1954 – Abdullah Atalar, Turkish scientist and Rector of Bilkent University
- 1959 – Peyami Gürel, Turkish painter
- 1960 – Jeremy Clarkson, English writer
- 1961 – Vincent Gallo, American screenwriter, director, and actor
- 1962 – Karen Friesicke, German actress and comedian (d. 2015)
- 1964 – Johann Sebastian Paetsch, American musician
- 1968 – Sergey Lukyanenko, Russian novelist
- 1971 – Oliver Riedel, bass guitarist of the German metal band
- 1972 – Jon Rechart, American professional wrestler (d. 2016)
- 1973 – Jennifer Esposito, American actress
- 1974 - Tricia Helfer, Canadian actress
- 1975 – Ufuk Özkan, Turkish actor
- 1977 – Demet Şener, Turkish model and actress
- 1977 – Ivonne Teichmann, German athlete
- 1980 – Keiji Tamada, Japanese international football player
- 1981 – Alessandra Ambrosio, Brazilian model
- 1981 – Sera Tokdemir, Turkish actress
- 1984 – Nikola Karabatić, French handball player
- 1985 – Pablo Hernández Domínguez, Spanish football player
- 1986 – Sarodj Bertin, Haitian model and former beauty queen
- 1987 – Lights, Canadian electropop musician, singer and songwriter
- 1987 – Michelle Phan, American entrepreneur and YouTube celebrity
- 1987 – Joss Stone, English soul and R&B singer, songwriter and actor
- 1990 – Thulani Serero, South African football player
- 1991 – Thiago Alcántara, Spanish football player
- 1994 – Dakota Blue Richards, English actress
- 1996 – Dele Alli, English football player
- 1997 – Suat Serdar, Turkish football player
- 1997 – Masashi Wada, Japanese football player
Deaths
- 618 – Emperor Yang, second emperor of the Sui Dynasty of China (b. 569)
- 678 – Donus, pope who served from November 2, 676 until his death in 678
- 1034 – III. Romanos, Byzantine Emperor (b. 968)
- 1514 – Donato Bramante, Italian architect (b. 1444)
- 1607 – Bento de Góis, Portuguese Jesuit missionary and explorer (b. 1562)
- 1626 – Marino Ghetaldi, Ragusan scientist (b. 1568)
- 1712 – Richard Simon, French Catholic commentator, theologian, philosopher, and historian (b. 1638)
- 1716 – Christian Knaut, German physician, botanist, and librarian (b. 1656)
- 1856 – Juan Santamaría, national hero of the Republic of Costa Rica (b. 1831)
- 1873 – Christopher Hansteen, Norwegian geophysicist and astronomer (b. 1784)
- 1890 – Joseph Merrick, British citizen known as the 'Elephant Man' (b. 1862)
- 1893 – Joseph Merrick, British citizen (b. 1862)
- 1895 – Julius Lothar Meyer, German chemist (b. 1830)
- 1902 – Wade Hampton III, Confederate States of America military officer and politician from South Carolina (b. 1818)
- 1918 – Otto Wagner, Austrian architect (b. 1841)
- 1939 – Kurtdereli Mehmet Pehlivan, Turkish wrestler (b. 1864)
- 1953 – Boris Kidrič, Slovenian partisan, first prime minister of the Socialist Republic of Slovenia (b. 1912)
- 1967 – Donald Sangster, Jamaican politician (b. 1911)
- 1970 – Cathy O'Donnell, American actress (b. 1923)
- 1970 – John O'Hara, American author (b. 1907)
- 1977 – Jacques Prévert, French poet and screenwriter (b. 1900)
- 1980 – Ümit Kaftancıoğlu, Turkish writer, compiler and radio host (b. 1935)
- 1983 – Dolores del Río, Mexican actress (b. 1905)
- 1985 – Enver Hoxha, President of Albania (b. 1908)
- 1987 – Primo Levi, Jewish-Italian chemist and author (b. 1919)
- 1989 – Orhon Murat Arıburnu, Turkish poet (b. 1916)
- 2002 – Giray Alpan, Turkish film actor (b. 1935)
- 2005 – Lucien Laurent, French former international football player (b. 1907)
- 2006 – DeShaun Dupree Holton, stage name Proof, American rapper (b. 1973)
- 2007 – Kurt Vonnegut, American author (b. 1922)
- 2009 – René Monory, French politician and statesman (b. 1923)
- 2011 – Lewis Roberts Binford, American archaeologist (b. 1931)
- 2011 – Ruşen Hakkı, Turkish journalist, poet and writer (b. 1936)
- 2012 – Ahmed Ben Bella, first President of Algeria (b. 1916)
- 2012 – Misbach Yusa Biran, Indonesian writer, director and critic (b. 1933)
- 2013 – Hilary Koprowski, Polish physician, researcher and scientist (b. 1916)
- 2013 – Maria Tallchief, American ballet dancer (b. 1925)
- 2013 – Jonathan Winters, American author (b. 1925)
- 2014 – Edna Doré, English actress (b. 1921)
- 2017 – José Ramón Gurruchaga Ezama, Peruvian Catholic bishop (b. 1931)
- 2017 – Edward Francis, Indian Catholic bishop (b. 1930)
- 2017 – J. Geils, American singer-songwriter and guitarist (b. 1946)
- 2017 – Margit Schumann, Olympic winner, former German luge athlete (b. 1952)
- 2017 – Toby Grafftey-Smith, English musician and songwriter (b. 1970)
- 2018 – Zola Skweyiya, South African politician (b. 1942)
- 2019 – Alexander V. Acebo, American politician (b. 1927)
- 2019 – Can Bartu, Turkish football player (born 1936)
- 2019 – Geoffrey Foucar Chew, American theoretical physicist, educator, and scientist (b. 1924)
- 2019 – Ian Cognito, English stand-up comedian and actor (b. 1958)
- 2019 – Dina, Portuguese singer-songwriter (b. 1956)
- 2020 – Colby Alexander Cave, Canadian professional ice hockey player (b. 1994)
- 2020 – Hélène Châtelain, French actress, producer, director, translator and screenwriter (b. 1935)
- 2020 – Stanley Chera, American real estate developer (b. 1942)
- 2020 – John Horton Conway, English mathematician (b. 1937)
- 2020 – Gerald O. Glenn, American evangelical pastor (b. 1953)
- 2020 – Wynn Handman, American artistic director (b. 1922)
- 2020 – Simon Barrington-Ward, Anglican bishop (b. 1930)
- 2020 – Gillian Wise, British artist (b. 1936)
- 2021 – Leokadiya Mihaylovna Drobijeva, Soviet-Russian sociologist (b. 1933)
- 2021 – Mita Haque, Bangladeshi female singer, composer and educator (b. 1962)
- 2021 – Fuzuli Javad oglu Javadov, Azerbaijani former professional football player (b. 1950)
- 2021 – Joseph Siravo, American actor, producer, and educator (b. 1957)
- 2021 – Mauricio Goldfarb or Mauro Viale, Argentine journalist and television presenter (b. 1947)
Holidays and special occasions
- World Parkinson's Day
- Withdrawal of French troops from Şanlıurfa (1920)