On this day in History - May 17

• 0352 - Liberius began his reign as Catholic Pope replacing Julius I.
• 0884 - St. Adrian III began his reign as Catholic Pope.
• 1155 - Jien was born (d. 1225). Japanese poet and historian.
• 1189 - Minamoto no Yoshitsune dies (b. 1159). Japanese general.
• 1336 - Emperor Go-Fushimi of Japan dies (b. 1288).
• 1365 - Louis VI the Roman dies (b. 1328). Duke of Bavaria and Elector of Brandenburg.
• 1383 - Casamento da herdeira Beatriz de Portugal com o rei João I de Castela.
• 1395 - Constantine Dragas dies. Serbian ruler of a semi-independent realm
• 1443 - Edmund, Earl of Rutland, brother of Kings Edward IV of England and Richard III of England.
• 1464 - Thomas de Ros, 10th Baron de Ros dies executed (b. 1427). English politician.
• 1498 - Vasco da Gama desembarca en la India, a donde llega circunnavegando África.
• 1510 - Sandro Botticelli dies (b. 1445). Italian painter (Birth of Venus).
• 1521 - Edward Stafford, 3rd Duke of Buckingham, is executed for treason.
• 1525 - Battle at Zabern: duke of Lutherans beats rebels
• 1536 - George Boleyn, Viscount Rochford dies. English diplomat
• 1536 - O casamento de Ana Bolena e Henrique VIII de Inglaterra é dissolvido .
• 1551 - Martin Delrio was born (d. 1601). Flemish theologian and occultist.
• 1575 - Matthew Parker dies (b. 1504). Archbishop of Canterbury.
• 1590 - Anne of Denmark is crowned Queen of Scotland.
• 1606 - Murder of Demetris : Demetrius, also called Pseudodemetrius I, who had claimed to be the son of the first Russian Tsar Ivan IV, was murdered in Moscow during a revolt on the part of the nobility led by Vasily Shuysky.
• 1626 - Juan Pujol dies (b. 1570). Catalan composer.
• 1628 - Archduke Ferdinand Charles of Austria, Regent of the Tyrol and Further Austria.
• 1642 - Paul Chomedey, sieur de Maisonneuve (1612-1676) founds the Ville Marie de Montréal.
• 1643 - Giovanni Picchi dies. Italian composer
• 1673 - Louis Joliet and Jacques Marquette begin exploring the Mississippi River.
• 1682 - Bartholomew Roberts was born (d. 1722). AKA Black Bart, notorious Welsh pirate.
• 1706 - Andreas Felix von Oefele was born (d. 1780). German historian and librarian.
• 1718 - Robert Darcy, 4th Earl of Holderness wass born (d. 1778). English diplomat and politician.
• 1727 - Catherine I of Russia dies (b. 1683 or 1684).
• 1729 - Samuel Clarke dies (b. 1675). English philosopher.
• 1743 - Seth Warner was born (d. 1784). American revolutionary leader.
• 1749 - Edward Jenner was born (d. 1823). English medical researcher.
• 1758 - John St Aubyn was born (d. 1839). British fossil collector.
• 1765 - Alexis Claude Clairault dies (b. 1713). French mathematician.
• 1768 - Caroline of Brunswick was born (d. 1821). Princess of Wales.
• 1768 - Henry Paget, 1st Marquess of Anglesey was born (d. 1854). English general.
• 1775 - American Revolutionary War: The Continental Congress bans trade with Canada.
• 1792 - The New York Stock Exchange is formed.
• 1794 - Anna Brownell Jameson was born (d. 1860). British writer.
• 1797 - Michel-Jean Sedaine dies (b. 1719). French dramatist.
• 1801 - William Heberden dies (b. 1710). English physician.
• 1803 - Napoleón rompe la Paz de Amiens de 27 de marzo de 1802 y reemprende la guerra.
• 1806 - Joaquim Possidónio da Silva was born. Portuguese archaelogist and architect.
• 1806 - Pascual Madoz Ibáñez was born. Spanish politician and writer.
• 1809 - Napoleon I of France orders the annexation of the Papal States to the French Empire Pope Pius VII responded by excommunicating Napoleon.
• 1809 - Leopold Auenbrugger dies (b. 1722). Austrian physician.
• 1814 - Norway gets its own constitution.
• 1814 - Occupation of Monaco changes from French to Austrian.
• 1821 - Sebastian Kneipp was born (d. 1897). German naturopathist.
• 1822 - Armand-Emmanuel du Plessis, Duc de Richelieu dies (b. 1766). French-Russian statesman.
• 1829 - John Jay dies (b. 1745). First Chief Justice of the United States.
• 1836 - Wilhelm Steinitz was born (d. 1900). Austrian chess player.
• 1836 - Virginie Loveling was born (d. 1923). Belgian writer and poet.
• 1838 - Charles Maurice de Talleyrand dies (b. 1754). French diplomat.
• 1838 - René Caillé dies (b. 1799). French explorer.
• 1839 - Archibald Alison dies (b. 1757). Scottish author.
• 1842 - August Thyssen was born (d. 1926). Industrialist.
• 1844 - Julius Wellhausen was born (d. 1918). German biblical scholar.
• 1845 - Jacint Verdaguer was born. Spanish poet.
• 1845 - Rubber band patents
• 1846 - The Saxophone is patented by Adolphe Sax.
• 1849 - A fire threatens to burn St. Louis, Missouri, to the ground.
• 1860 - German soccer club TSV 1860 München is founded
• 1863 - Rosalía de Castro publishes Cantares Gallegos, her first book in Galician language.
• 1865 - International Telegraph Union (later International Telecommunication Union) is established.
• 1866 - Erik Satie (Alfred Erik Leslie) was born († 01 Jul 1925). French composer.
• 1868 - Horace Elgin Dodge was born (d. 1920). American automobile manufacturer.
• 1868 - Isami Kondo dies (b. 1834). Shinsengumi Commander.
• 1873 - Henri Barbusse was born (d. 1935). French novelist and journalist.
• 1873 - Dorothy Richardson was born (d. 1957). English feminist writer.
• 1875 - Aristides wins the first Kentucky Derby.
• 1875 - John C. Breckinridge dies (b. 1821). Vice President of the United States.
• 1875 - Popular rider Oliver Lewis rode H.P. McGrath's thoroughbred Aristides to victory in the first Kentucky Derby at the Louisville Jockey Club. Fourteen of the fifteen jockeys in the Derby, including Lewis, were African Americans.
• 1877 - Juana Borrero was born (d. 1896). Cuban writer.
• 1879 - Simon Petlyura was born (d. 1926). Ukrainian independence fighter.
• 1879 - Asa Packer dies (b. 1805). Railroad magnate and founder of Lehigh Valley Railroad.
• 1884 - Alaska became a US territory.
• 1886 - Alfonso XIII of Spain was born (d. 1941).
• 1886 - John Deere dies (b. 1804). American blacksmith and manufacturer.
• 1888 - Tich Freeman was born (d. 1965). English cricketer.
• 1888 - Giacomo Zanella dies (b. 1820). Italian poet.
• 1889 - Don Alfonso Reyes was born. Mexican poet, historian and diplomat (Higenia Cruel) .
• 1895 - The first Omonoia station of the Athens metro is inaugurated in Greece.
• 1897 - Odd Hassel was born (d. 1981). Norwegian chemist, Nobel Prize laureate.
• 1898 - Alfred Joseph Casson was born (d. 1992). Canadian painter.
• 1900 - Ruhollah Khomeini was born (d. 1989). Iranian Shiite religious leader.
• 1900 - Boer War: British troops relieve Mafeking. After 216 days Boer forces abandon the siege and Colonel Mahon's relief column enters the town.
• 1900 - Mexico: El presidente Porfirio Díaz inaugura solemnemente las obras de desagüe del Valle de México, mismas que se iniciaran en 1888 por el ingeniero Luis Espinosa y que tienen una extensión de cuarenta y siete kilómetros. Su costo fue de dieciséis millones de pesos.
• 1901 - Werner Egk was born (d. 1983). German composer.
• 1902 - Archaeologist Spyridon Stais finds the Antikythera mechanism.
• 1903 - Cool Papa Bell was born (d. 1991). Baseball player.
• 1903 - Valentim Magalhães dies (b. 1859). Brazilian writer and journalist.
• 1904 - Maurice Ravel's "Sherazade," premieres in Paris
• 1904 - Jean Gabin was born (d. 1976). French actor.
• 1906 - Zinka Milanov was born (d. 1989). Croatian soprano.
• 1911 - El general Benjamiín G. Hill de las fuerzas maderistas, ataca y toma la población de Navojoa, Sonora.
• 1911 - Los representantes de Don Francisco I. Madero y el representante del dictador Porfirio Díaz firman en Ciudad Juárez, Chihuahua, un armisticio por el que se suspenden las hostilidades en todo el país y se impone al gobierno la obligación de reparar las vías férreas y telegráficas en tanto se fijan las condiciones de paz nacional.
• 1911 - Antonio Tovar was born. Spanish linguist
• 1911 - Maureen O'Sullivan was born (d. 1998). Irish actress.
• 1911 - Lisa Fonssagrives was born (d. 1992). Swedish-born supermodel.
• 1915 - The last British Liberal Party government (Herbert Henry Asquith) falls.
• 1916 - Boris Borisovich Galitzine dies (b. 1862). Russian physicist.
• 1917 - Charles Anthoni Johnson Brooke dies (b. 1829). Ruler of Sarawak.
• 1918 - Almost the entire leadership of Sinn Féin are arrested.
• 1918 - Birgit Nilsson was born in Karup. Swedish operatic soprano (Isolde, Turandot, Elektra, Salome.
• 1919 - Committee of One Thousand forms to oppose Winnipeg General Strike.
• 1919 - Merle Miller was born (d. 1986). American biographer.
• 1919 - Guido von List dies (b. 1848). German occult author.
• 1921 - Dennis Brain was born (d. 1957). English French horn player.
• 1921 - Bob Merrill was born (d. 1998). American composer and lyricist.
• 1922 - Antje Weisgerber was born. Actress.
• 1924 - Hannes Messemer was born (d. 1991). Actor.
• 1928 - 9th modern Olympic games opens in Amsterdam
• 1929 - Carlos Pena Filho was born in Recife, Pernambuco (d. 1 Jul 1960). Brazilian poet.
• 1929 - John Herbert (John Herbert Buckup) was born in São Paulo. Brazilian actor.
• 1931 - Marshall Applewhite was born (d. 1997). American cult leader.
• 1933 - Vidkun Quisling and Johan Bernhard Hjort form Nasjonal Samling - the national-socialist party of Norway.
• 1934 - Cass Gilbert dies. American architect.
• 1935 - Dennis Potter was born (d. 1994). English writer.
• 1935 - Paul Dukas dies (b. 1865). French composer.
• 1936 - Dennis Hopper was born in Kansas. American actor (True Grit, Blue Velvet, Easy Rider) .
• 1936 - Panagis Tsaldaris dies (b. 1868). Twice Greek prime minister.
• 1937 - Hazel R. O'Leary was born. United States Secretary of Energy.
• 1937 - Guilląme Furrét dies (b. 1863). Portuguese playwright and political activist.
• 1938 - NBC aired the Information Please quiz show on the radio for the first time.
• 1938 - Jason Bernard was born (d. 1996). American actor.
• 1938 - Jakob Ehrlich dies (b. 1877). Austrian politician and zionist.
• 1939 - Gary Paulsen was born. American author
• 1940 - World War II: Germany occupies Brussels, Belgium.
• 1940 - World War II: The old city centre of the Dutch town of Middelburg is bombed by the German Luftwaffe, to force the surrender of the Dutch armies in Zeeland.
• 1940 - Alan Kay was born. American computer scientist.
• 1941 - David Cope was born. American composer and author.
• 1941 - José Leite de Vasconcelos dies. Portuguese ethnologist and philologist.
• 1941 - World War II: North AfricaRommel is instructed by Berlin to leave Torbruk to the Italians and concentrate his Deutsches Afrika Korps on the fight along the Egypt-Libya border.
• 1942 - Taj Mahal was born. American singer and guitarist.
• 1943 - World War II: Surviving RAF Dam Busters return.
• 1943 - The United States Army contracts with the University of Pennsylvania's Moore School to develop the ENIAC.
• 1943 - Vicky Moscholiou was born (d. 2005). Greek singer.
• 1944 - Type IX U-boat: U-884 is launched.
• 1946 - F. Paul Wilson was born. American novelist
• 1946 - Udo Lindenberg was born. German musician.
• 1946 - William Jefferson Blythe III dies (b. 1918). Father of U.S. President Bill Clinton.
• 1947 - Em Lisboa, inauguração oficial do Pavilhão dos Desportos, com a jornada de abertura do III Campeonato do Mundo de Hóquei em Patins, que Portugal vence pela primeira vez.
• 1947 - George William Forbes dies (b. 1869). Prime Minister of New Zealand.
• 1948 - William Bruford was born. Drummer, songwriter.
• 1948 - The Soviet Union recognized the new state of Israel.
• 1949 - Bill Bruford was born. English musician (Yes)
• 1950 - Janez Drnovšek was born. Slovenian politician.
• 1952 - Howard Hampton was born. Leader of the New Democratic Party of Ontario
• 1954 - The United States Supreme Court hands down a unanimous decision in Brown v. Board of Education of Topeka, Kansas. The Supreme Court ruled that racial segregation in public schools is unconstitutional.
• 1956 - Dave Sim was born. Canadian cartoonist
• 1956 - Sugar Ray Leonard was born in Willington, SC. American boxer (Olympics-gold-76).
• 1956 - Bob Saget was born. American actor.
• 1956 - Nicole Puzzi (Tereza Nicole Puzzi Ferreira) was born in Floraí, PR. Brazilian actress.
• 1956 - Nationalist China breaks off relation with Egypt after President Gamal Abdel Nasser grants diplomatic recognition to Communist China.
• 1957 - Pascual Pérez was born. Major league pitcher.
• 1958 - Paul Di'Anno was born. English singer (Iron Maiden).
• 1959 - Portugal: Inauguração do monumento a Cristo-Rei.
• 1959 - Jim Nantz was born. American broadcaster.
• 1960 - British Queen Mother starts the hydro-electric turbines of the Kariba Dam on the Zambezi. She applauds the "young and enterprising" Central African Federation of Rhodesia and Nyasaland.
• 1960 - Lou DiBella was born. American boxing promoter
• 1961 - Enya was born. Irish singer, songwriter.
• 1961 - Cuban leader Fidel Castro offered to exchange prisoners captured in the abortive Bay of Pigs invasion for 500 bulldozers.
• 1962 - Lise Lyng Falkenberg was born. Danish writer.
• 1962 - Craig Ferguson was born. Scottish actor and comedian.
• 1963 - Bruno Sammartino beats Buddy Rogers in NY, to become WWF champion
• 1963 - Page McConnell was born. American musician and songwriter (Phish)
• 1963 - John Wilce dies (b. 1888). Physician and former head football coach at the Ohio State University.
• 1964 - President Ahmed Ben Bella, of the republic of Algeria, returns home after a 25-day diplomatic tour to the Soviet Union and Eastern Europe.
• 1964 - Menno Oosting was born (d. 1999). Dutch tennis player.
• 1965 - Richard Baumhammers was born. American spree killer
  1965 - Trent Reznor, American musician (Nine Inch Nails)
• 1965 - Trent Reznor was born. American singer (Nine Inch Nails).
• 1966 - Qusay Hussein was born (d. 2003). Son of Saddam Hussein.
• 1967 - Six-Day War: President Abdul Nasser of Egypt demands dismantling of the peace-keeping UN Emergency Force in Egypt.
• 1967 - Nancy Daus was born. American professional wrestling valet
• 1969 - Venera program: Soviet Venera 6 begins its descent into the atmosphere of Venus, sending back atmospheric data before being crushed by pressure.
• 1969 - Thom Filicia was born. American television personality.
• 1969 - Alan Doyle was born. Canadian musician (Great Big Sea).
• 1970 - Thor Heyerdahl sets sail from Morocco on the papyrus boat Ra II to sail the Atlantic Ocean.
• 1970 - Renzo Furlan was born. Italian tennis star.
• 1970 - Jordan Knight was born. American singer (New Kids on the Block).
• 1970 - Angelica Agurbash was born. Belarussian singer, actress and model.
• 1970 - Matt Lindland was born. American mixed martial arts fighter.
• 1971 - Maxima Zorreguieta Cerruti was born. Wife of Prince Willem-Alexander of the Netherlands.
• 1971 - Shaun Hart was born. Australian footballer.
• 1971 - Princess Máxima of the Netherlands was born.
• 1973 - Watergate scandal: Hearings begin in the United States Senate and are televised.
• 1973 - Josh Homme was born. American musician and songwriter
• 1973 - Matthew McGrory was born. American actor
• 1973 - Sasha Alexander was born. American television actress
• 1974 - Los Angeles, California police raid Symbionese Liberation Army headquarters, killing six members, including Camilla Hall.
• 1974 - Constituição da Cia. Hidrelétrica de Itaipu, a maior do mundo, pelo presidente brasileiro Geisel e pelo ditador paraguaio Stroessner.
• 1974 - Thirty-three people are killed by terrorist bombings in Dublin and Monaghan, Ireland.
• 1974 - Andrea Corr was born. Irish singer (The Corrs).
• 1974 - Wiki González was born. Venezuelan baseball player.
• 1974 - Eddie Lewis was born. American football (soccer) player.
• 1974 - Sendhil Ramamurthy was born. American actor.
• 1974 - Ernest Nash dies (b. 1898). German born archaeologist.
• 1975 - 10cc releases "I'm Not in Love".
• 1975 - Sasha Alexander was born. American actress.
• 1975 - Laura Voutilainen was born. Finnish singer.
• 1975 - Cheick Kongo was born. French martial artist.
• 1975 - Jonti Picking was born. British cartoonist.
• 1975 - Kostas Sommer was born. Greek actor.
• 1975 - Alex Wright was born. German professional wrestler.
• 1976 - José Guillén was born. Dominican baseball player
• 1976 - Lee-Hom Wang was born. American-born Taiwanese musician, singer, songwriter, and composer.
• 1977 - Menachem Begin's Likud-party won election in Israel.
• 1978 - South African police close the investigation into the death of Steve Biko.
• 1978 - Paddy Kenny was born. Irish goalkeeper
• 1979 - Wayne Thomas was born. English footballer
• 1980 - General Chun Doo-hwan of South Korea declares martial law in order to suppress student demonstrations.
• 1980 - Peru: Terrorist group Shining Path attacked a voting poll in the town of Chuschi, Ayacucho starting the Internal conflict in Peru.
• 1980 - Dallas Taylor was born. American Vocalist (Underoath).
• 1980 - Davor Džalto was born. Serbian art historian.
• 1981 - Beñat Albizuri was born. Spanish cyclist.
• 1981 - R.J. Helton was born. American Idol finalist.
• 1981 - Shiri Maimon was born. Israeli singer.
• 1981 - Leon Osman was born. English footballer.
• 1981 - Giannis Taralidis was born. Greek footballer.
• 1982 - Tony Parker was born. French-American basketball player.
• 1983 - Lebanon, Israel, and the United States sign an agreement on Israeli withdrawal from Lebanon.
• 1983 - Channing Frye was born. American basketball player
• 1983 - Nicky Hofs was born. Dutch footballer
• 1984 - Prince Charles calls a proposed addition to the National Gallery, London a "monstrous carbuncle on the face of a much-loved and elegant friend," sparking controversies on the proper role of the Royal Family and the course of modern architecture.
• 1984 - Christine Robinson was born. Canadian water polo player
• 1984 - Christian Bolaños was born. Costa Rican footballer
• 1985 - Dan Wilson was born. American professional Motocross and Arenacross rider
• 1985 - Abe Burrows dies. Songwriter, composer, and writer.
• 1986 - Tahj Mowry was born. American actor
• 1987 - Iran-Iraq War: The USS Stark (FFG-31) is struck by a missile from an Iraqi Mirage fighter killing 37 and injuring 21 of her crew.
• 1987 - Gunnar Myrdal dies (b. 1898). Swedish economist, Nobel Prize laureate.
• 1988 - Nikki Reed was born. American actress
• 1989 - A military coup fails to remove Mengistu Haile Mariam as president of Ethiopia.
• 1989 - More than 1 million people swarmed into central Beijing to express support for Chinese students fasting for democracy.
• 1991 - The UN's High Commission for Refugees (UNHCR) has predicted that 1,200,000 people in Ethiopia are about to starve to death.
• 1991 - Lupita Jones, 23, of Mexico, crowned 40th Miss Universe.
• 1992 - In Thailand, the so-called Black May begins. Thai police and protestors start attacking one another. By midnight, the current Thai government declares a state of emergency, and military troops open fire.
• 1992 - Lawrence Welk dies (b. 1903). American musician.
• 1993 - Egyptian president Muhammad Hosni Mubarak orders direct-dial communications to Pakistan, Afghanistan, Iraq, Iran and the Sudan cut as part of the fight against Islamic extremists.
• 1994 - Malawi : President Banda is deposed
• 1995 - After 18 years as the mayor of Paris, Jacques Chirac takes office as President of France.
• 1995 - Hector "Toe" Blake dies (b. 1912). Canadian ice hockey player and NHL coach.
• 1996 - Alicia Machado 18, of Venezuela crowned 45th Miss Universe
• 1996 - Kevin Gilbert dies (b. 1966). American singer, composer and instrumentalist.
• 1996 - Scott Brayton dies (b. 1959). American race car driver.
• 1997 - In Zaire rebel forces entered Kinshasa and Laurent Kabila declared himself president of the Democratic Republic of the Congo.
• 1997 - Troops of Laurent Kabila march into Kinshasa.
• 1998 - David Wells of the New York Yankees pitches the 15th perfect game in baseball history against the Minnesota Twins at Yankee Stadium.
• 1998 - In Afghanistan Taliban jet fighters bombed a crowded market and killed at least 30 people and wounded 50 in Taloqan, the capital of Takhar province.
• 1999 - Ehud Barak (Labour Party) is elected prime minister of Israel. He won over Benjamin Netanyahu 56% to 44%.
• 1999 - Henry Jones, actor, died at age 86 in Los Angeles. His films included "This Is the Army" (1943).
• 1999 - Bruce Fairbairn dies (b. 1949). Canadian record producer and musician.
• 2000 - Philippines. Explosion rocks Glorietta 2 injuring 13 persons, mostly teenagers. According to local authorities, the homemade bomb was placed in front of a toilet beside a video arcade.
• 2000 - In Yugoslavia Pres. Milosevic ordered the seizure of independent radio and TV stations and charging that they were advocating an uprising against the government. Tens of thousands protested the crackdown.
• 2000 - Donald Coggan dies (b. 1909). 101st Archbishop of Canterbury.
• 2001 - Frank G. Slaughter dies (b. 1908). American novelist and physician.
• 2002 - Ladislao Kubala dies (n. 1927). Hungarian-Spanish footballer.
• 2002 - Dave Berg dies (b. 1920). American cartoonist.
• 2002 - Sharon Sheeley dies (b. 1940). American songwriter.
• 2002 - Davey Boy Smith dies (b. 1962). English professional wrestler.
• 2003 - Mozilla Firefox. Browser renamed from Phoenix to Firebird.
• 2003 - In south-central Sri Lanka flash floods and landslides killed at least 300 people and drove some 150,000 people from their homes.
• 2003 - Frank "Pop" Ivy, American and Canadian football coach (b. 1916)
• 2004 - Massachusetts becomes the first U.S. state to legalize same-sex marriage
• 2004 - Tony Randall dies (b. 1920). American actor.
• 2004 - Jørgen Nash dies (b. 1920). Danish artist.
• 2004 - Ezzedine Salim dies (b. 1943). Leader of Iraqi Governing Council
• 2004 - China and Kazakhstan agreed to build a 744-mile crude oil pipeline to send an initial 10 million tons of Kazakh oil to Xinjiang by 2006.
• 2005 - Portugal asume a Presidencia do Conselho da Europa, sucedendo à Polónia.
• 2005 - Frank Gorshin dies (b. 1934). American actor.
• 2006 - The aircraft carrier USS Oriskany sunk in the Gulf of Mexico to be an artificial reef
• 2006 - Cy Feuer dies (b. 1911). American playwright.
• 2006 - Eric Forth dies (b. 1944). British Member of Parliament.
• 2006 - Captain Nichola Goddard dies (b. 1980). Canadian soldier.
• 2007 - Trains from North and South Korea cross the 38th Parallel in a test-run agreed by both governments. This is the first time that trains have crossed the Demilitarized Zone since 1953.
• 2007 - Lloyd Alexander dies (d. 1924). American author.
• Norwegian Constitution Day - Syttende Mai a commemoration of the adoption of Norway's constitution in 1814.
• Bahá'í Faith - Feast of 'Azaamat (Grandeur) - First day of the fourth month of the Bahá'í Calendar.
• Día das Letras Galegas ("Galician Literature Day") — holiday in Galicia, honouring the Galician language.
• International Day Against Homophobia aka IDAHO.