- 491 Flavius Anastasius becomes Byzantine Emperor, as Anastasius I
- 672 Deusdedit II begins his reign as Catholic Pope
- 1079 Bishop Stanislaus of Krakow is executed by order of Bolesław II of Poland
Battle of Ravenna
1512 Battle of Ravenna: French forces under Gaston de Foix defeat the Holy League in a major battle of the Italian Wars
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Victory in Battle
1677 Battle at Montcassel, French troops beat Prince William III

William III
- 1689 King William III and Queen Mary II crowned as joint rulers of England, Scotland and Ireland
- 1713 Great Britain, Spain, the Netherlands, Prussia, Savoy, Portugal & France agree the Treaty of Utrecht; France cedes Maritime provinces in North America to Britain
- 1750 Jack Slack retains Champion of England boxing title, beats Frenchman Jean Petit in 7 rounds in Harlston, England; acknowledged as first international prize fight
- 1783 Hostilities formally cease in the American Revolutionary War
- 1801 Johann von Schiller's "Die Jungfrau von Orleans" premieres in Leipzig

Napoléon Bonaparte
- 1828 Foundation of Bahia Blanca, Argentina
Event of Interest
1830 Robert Schumann hears the violinist Paganini play in Frankfurt

Robert Schumann
- 1848 Hungary becomes constitutional monarchy under King Ferdinand of Austria
- 1856 Battle of Rivas; Costa Rica beats William Walker's invading Nicaraguans
- 1862 Confederates surrender at Fort Pulaski, Georgia
- 1863 Battle of Suffolk, Virginia (Norfleet House)
- 1865 Battle of Mobile, Alamaba evacuated by Confederates
Event of Interest
1865 Abraham Lincoln urges a spirit of generous conciliation during reconstruction

Abraham Lincoln
- 1868 The Shogunate is abolished in Japan
- 1876 Benevolent & Protective Order of Elks organizes in New York City
- 1876 Sir Charles Gordon ends religious tolerance in Sudan
- 1881 River ferry "Princess Victoria" sinks in Thames River, Ontario, 180 die
- 1881 Spelman College founded as Atlanta Baptist Female Seminary in basement of Friendship Baptist Church, Atlanta
- 1888 The Concertgebouw in Amsterdam is inaugurated
- 1890 Ellis Island, New York, designated as an immigration station
- 1891 8-year old Jewish tailor's daughter disappears in Greece, rumor spreads that she was a Christian girl ritually killed by Jews
- 1895 Anaheim completes its new electric light system
- 1896 Hungarian swimmer Alfréd Hajós beats Otto Herschmann of Austria by 0.6s to win the inaugural Olympic 100m freestyle final in 1:22.2 at the Athens Games; also takes out the 1,200m on the same day
- 1896 Irish tennis player John Boland, representing Great Britain wins both the men's singles and doubles finals at the Athens Olympics; Dionysios Kasdaglis of Greece loses both matches
Spain Declares War Against the United States
1898 President McKinley asks for Spanish–American War declaration
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- 1899 Treaty of Paris ratifies ends war; Spain cedes Puerto Rico to US
Event of Interest
1900 The first modern submarine designed and built by John Philip Holland is purchased by the U.S. Navy

John Philip Holland

Edward Smith
- 1912 Cornerstone of Technion laid in Haifa, Palestine
- 1912 The UK Parliament introduce a Irish home rule bill, granting Ireland its own bicameral parliament and be required to send a representative to the British House of Commons; Protestants in Ulster resist
- 1914 Mexican President Huerta breaks off diplomatic relations with the US
- 1919 The International Labour Organization is founded.
- 1921 Iowa imposes 1st state cigarette tax
- 1921 KDKA broadcast 1st radio sporting event, a boxing match (Ray-Dundee)
- 1921 Turkestan ASSR forms in Russian SFSR
- 1921 The Emirate of Transjordan created
- 1924 1st men's college swimming championships begin
- 1924 Socialists win Danish parliamentary elections
- 1924 WLS-AM in Chicago IL begins radio transmissions
- 1925 Abd el-Krims Rifkabylen beats French army in Morocco
- 1926 Flemish Economic Covenant (VEV) forms in Ghent
- 1927 Chilean general Carlos Ibáñez names himself president
- 1929 KLO-AM in Ogden UT begins radio transmissions
- 1929 Loetafoon celluloid film system demonstrated in Amsterdam
Event of Interest
1933 Hermann Goering becomes Premier of Prussia

Hermann Goering
- 1936 Rodgers & Hart's musical "On Your Toes" premieres in NYC
Event of Interest
1936 Stanley Cup Final, Maple Leaf Gardens, Toronto, ON: Detroit Red Wings beat Toronto Maple Leafs, 3-2 for a 3-1 series win; Red Wings first SC Championship

George Hainsworth
- 1939 Hungary leaves League of Nations

- 1941 Jewish Weekly newspaper taken control by Nazis
- 1941 Nazi occupiers in Netherlands confiscate Jewish assets
- 1942 US Merchant Marine Distinguished Service Medal established
- 1943 Frank Piasecki, Vertol founder, flies his 1st (single-rotor) craft
- 1944 RAF bombs census bureau in The Hague
- 1945 Allied troops liberate Basket-Compascuum
- 1945 SS burns & shoots 1,100 at Gardelegen
- 1945 US captures Tsugen Shima
- 1945 Four soldiers in the Sixth Armored Division of the US Third Army liberate the Nazi concentration camp, Buchenwald
- 1945 US troops conquers Mulheim, Oberhausen, Bochum, Unna, Essen
- 1948 12th US Masters Tournament, Augusta National GC: Claude Harmon shoots a record-tying 279 (−9) to finish 5 strokes ahead of runner-up Cary Middlecoff
Event of Interest
1950 Prince Rainier III becomes ruler of Monaco

Rainier III
- 1950 US B-29 bomber shot down over Latvia
Event of Interest
1951 US President Harry Truman relieves General Douglas McArthur of command in Korea

Harry Truman
Assassination Attempt
1955 Chartered Air India plane the "Kashmir Princess" is bombed and crashes into the South China Sea in a failed assassination attempt on Zhou Enlai by a Kuomintang secret agent

Zhou Enlai
Film Premier
1955 "Marty" directed by Delbert Mann and starring Ernest Borgnine and Betsy Blair premieres in New York (Best Picture 1956)

Ernest Borgnine
Event of Interest
1957 Pablo Neruda arrested in Buenos Aires

Pablo Neruda
- 1957 Ryan X-13 Vertijet becomes 1st jet to take-off & land vertically
- 1957 Britain agrees to Singaporean self-rule.
- 1958 Brooks Hall in Civic Center dedicated in San Francisco
- 1959 "Jamaica" closes at Imperial Theater NYC after 558 performances
- 1959 Dodger pitcher Don Drysdale hits his 2nd Opening Day HR
- 1959 Dutch prince Bernhard visits Lockheed factory
'The Banality of Evil'
1961 Trial of Adolf Eichmann for war crimes in World War II begins in Jerusalem, Israel
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Catholic Encyclical
1963 Pope John XXIII publishes encyclical "Pacem in terris", that peace between all peoples must be based on truth, justice, love and freedom

John XXIII
- 1963 US performs nuclear test at Nevada Test Site
- 1963 Milwaukee Braves future Baseball Hall of Fame pitcher Warren Spahn beats NY Mets, 6-1 for his 328th win; most by a left-hander in MLB history
- 1964 "Anyone Can Whistle" closes at Majestic Theater NYC after 9 performances
US Masters Golf
1965 29th US Masters Tournament, Augusta National GC: Jack Nicklaus wins the 2nd of his 6 Masters titles with a tournament record 271 (−17); beats Gary Player and Arnold Palmer by a record 9 strokes
- 1965 40 tornadoes strike US midwest killing 272 & injuring 5,000
- 1966 30th US Masters Tournament, Augusta National GC: Jack Nicklaus becomes first back-to-back champion winning an 18-hole Monday playoff with Tommy Jacobs and Gay Brewer
- 1966 Emmett Ashford becomes 1st African American major league umpire
Music Recording
1966 Frank Sinatra records "Strangers in the Night" single for his album of the same name. Later reaches #1 Billboard charts

Frank Sinatra
- 1967 "Illya Darling" opens at Mark Hellinger Theater NYC for 320 performances
Election of Interest
1967 Harlem (NYC) voters defy Congress and reelect Adam Clayton Powell Jr.

Adam Clayton Powell Jr.
Theater Premiere
1967 Tom Stoppard's play "Rosencrantz & Guildenstern are Dead" debuts in London at the Old Vic

Tom Stoppard
- 1968 Polish Marshal Spychalski succeeds Ochab as president
Event of Interest
1968 US President Lyndon B. Johnson signs 1968 Civil Rights Act

Lyndon B. Johnson
- 1968 W Berlin student Rudi Dutschke seriously wounded at demonstration
- 1968 WHED TV channel 15 in Hanover, NH (PBS) begins broadcasting
- 1970 Apollo 13 launched to Moon; unable to land, returns in 6 days
- 1970 Beatles' "Let It Be" single goes #1 & stays #1 for 2 weeks
- 1970 San Francisco beats Cincinnati 2-1, only day Reds aren't in 1st place in 1970
- 1971 "Johnny Johnson" opens/closes at Edison Theater NYC for 1 performance
- 1971 35th US Masters Tournament, Augusta National GC: Charles Coody wins his only major title by 2 strokes ahead of runners-up Johnny Miller and Jack Nicklaus
- 1971 WBFF TV channel 45 in Baltimore, MD (IND) begins broadcasting
- 1972 Benjamin L Hooks named to FCC
- 1972 USSR performs underground nuclear test
- 1974 WW II war criminal JP Philippa arrested
Event of Interest
1975 Hank Aaron returns to County Stadium as a Milwaukee player after his off-season trade from the Atlanta Braves; Brewers beat Cleveland Indians, 6-2

Hank Aaron
- 1975 J. P. Parisé scores an 11 sec OT goal, to see the NY Islanders eliminate the NY Rangers in their ever 1st playoff advance
- 1976 40th US Masters Tournament, Augusta National GC: Raymond Floyd wins his only Masters title, 8 strokes ahead of runner-up Ben Crenshaw
Event of Interest
1976 The Apple I computer, created by Steve Wozniak is released

Steve Wozniak
- 1980 Equal Employment Opportunity Commission regulates sexual harassment
Event of Interest
1980 Paul McCartney releases "Coming Up"

Paul McCartney
Boxing Title Fight
1981 Larry Holmes beats Trevor Berbick in 15 for heavyweight boxing title

Larry Holmes
- 1981 Race riot in London area of Brixton
Event of Interest
1981 Ronald Reagan arrives home from hospital after Hinkley shot him

Ronald Reagan
- 1982 46th US Masters Tournament, Augusta National GC: Craig Stadler wins his only major title by defeating Dan Pohl on the 1st hole of a sudden-death playoff
- 1983 3rd Golden Raspberry Awards: "Inchon!" wins
- 1983 47th US Masters Tournament, Augusta National GC: Seve Ballesteros of Spain wins his 2nd Masters and 3rd major title, 4 strokes ahead of Ben Crenshaw and Tom Kite; Monday finish because of torrential rain
Academy Awards
1983 55th Academy Awards: "Gandhi", Ben Kingsley & Meryl Streep win

Meryl Streep

Ben Kingsley
Appointment of Interest
1984 General Secretary Konstantin Chernenko named President of the Soviet Union

Konstantin Chernenko
- 1984 Soyuz T-11 returns to Earth
- 1986 A 1921 Canadian 50 cent coin is auctioned in New York for $22,000
- 1986 Dodge Morgan sailed solo nonstop around world in 150 days
- 1986 Halley's Comet makes closest approach to Earth this trip, 63 M km
- 1986 KXA-AM in Seattle WA changes call letters to KRPM
- 1987 Yankees score 12 runs in 7th inning vs KC Royals
- 1987 Zoja Ivanova wins 2nd female World Cup marathon (2:30:39)
- 1988 Royal Concert building in Amsterdam reopens
Academy Awards
1988 60th Academy Awards: "The Last Emperor", Michael Douglas & Cher win

Michael Douglas

Cher
Event of Interest
1989 1st playoff goal scored by a goalie, Ron Hextall of Philadelphia

Ron Hextall
- 1989 Flyers, scores short-handed into an empty net beating Caps 8-5
- 1990 Angels Mark Langston & Mike Witt, no-hit Seattle, 1-0
- 1990 NY Lotto pays $35 million to two winner (#s are 6-14-24-32-34-51)
- 1990 NY Rangers beat NY Islanders 6-1, Rangers lead 3-1 in preliminary
- 1990 Customs officers in Middlesbrough, United Kingdom, say they have seized what they believe to be the barrel of a massive gun on a ship bound for Iraq.
- 1991 "Miss Saigon" opens at Broadway Theater NYC
- 1991 NYC's Museum of Broadcasting becomes "Museum of Radio & Television"
- 1991 Space Shuttle STS 37 (Atlantis 8) lands
- 1991 UN Security Council issues formal cease fire with Iraq declaration
- 1992 BPAA US Open by Robert Lawrence
- 1992 Indians set team record for long game loss to Red Sox (19 inn - 6½ hr)
- 1992 Irish Republican Army bombs London financial district, killing 3
- 1993 57th US Masters Tournament, Augusta National GC: Bernhard Langer of Germany wins his second green jacket by 4 strokes from Chip Beck
- 1993 Jeff Rouse swims world record 100m backstroke (51.43 sec)
- 1993 Kirsan Ilumzjinov installed as president of Kalmukkie
- 1993 450 prisoners riot at the Southern Ohio Correctional Facility in Lucasville, Ohio, and continue for ten days, citing grievances about prison conditions and the forced vaccination of Nation of Islam prisoners (for tuberculosis)
- 1996 "King & I" premieres at Neil Simon Theater in NYC for 781 perform
- 1996 Detroit Red Wings become 2nd NHL team to win 60 games in a season
- 1999 63rd US Masters Tournament, Augusta National GC: José María Olazábal of Spain wins his second Masters title, 2 strokes ahead of Davis Love III and 3 from of Greg Norman
- 1999 52nd British Film and Television Awards (BAFTAS): "Shakespeare in Love" Best Film, Peter Weir Best Director
- 1999 Neil Jenkins converts a Scott Gibbs try to give Wales a famous, 32-31 win over England at Wembley Stadium; allows Scotland to win final Five Nations Rugby Championship; reverts to 6 teams in 2000
- 2000 AT&T Park in San Francisco, Minute Maid Park in Houston, and Comerica Park in Detroit open.
- 2000 South African cricket captain Hansie Cronje is sacked after admitting dishonesty following match-fixing allegations in India
- 2001 Detained crew of a United States EP-3E aircraft that landed in Hainan, People's Republic of China after a collision with an J-8 fighter are released
- 2002 The Ghriba synagogue bombing by Al Qaeda kills 21 in Tunisia
Coup d'état
2002 An attempted coup d'état takes place in Venezuela against President Hugo Chávez.

Hugo Chávez
- 2004 68th US Masters Tournament, Augusta National GC: Phil Mickelson claims his first major title with a birdie on the final hole to win by 1 stroke over Ernie Els of South Africa
Music Awards
2005 39th CMT Music Awards: Keith Urban, Gretchen Wilson & Kenny Chesney wins

Keith Urban
Event of Interest
2006 Iranian President Mahmoud Ahmadinejad announces that Iran has successfully enriched uranium

Mahmoud Ahmadinejad
- 2007 Two bombings in the Algerian capital of Algiers kill 33 people and wounds a further 222
- 2010 74th US Masters Tournament, Augusta National GC: Phil Mickelson wins his 3rd green jacket by 3 strokes from England's Lee Westwood
- 2010 "The night of Sora Aoi", Japanese porn actress Sora Aoi joins twitter prompting many Chinese fans to try and circumnavigate Chinese censorship
- 2011 Minsk Metro bombing in Belarus kills at least 15 and injures over 200
- 2012 8.6 magnitude earthquake and 8.2 aftershock occurs off the coast of Indonesia
- 2012 2011 London riot looter is jailed for 11 years after starting a fire at a furniture retailer
- 2012 South Korean legislative elections result in the governing Saenuri Party retaining governance
- 2012 Prime Minister of Greece, Lucas Papademos, resigns and calls an election for May 6
Event of Interest
2012 Billionaire Warren Buffett is diagnosed with prostate cancer

Warren Buffett
Film Premier
2012 "The Avengers", directed by Joss Whedon and starring Robert Downey Jr., Chris Evans, Chris Hemsworth, Scarlett Johansson, Mark Ruffalo and Jeremy Renner, premieres in Los Angeles
- 2013 14 people are killed in clashes between drug traffickers and police in Michoacán, Mexico
- 2013 57 people are killed by the Syrian Army in Daraa Governorate, Syria
- 2013 Two women are beheaded for sorcery in Bougainville, Papua New Guinea
- 2013 Fossilized dinosaur eggs with embryos are discovered in China
Meeting of Interest
2015 Barack Obama and Raúl Castro meet in Panama, the 1st meeting of US and Cuban heads of state since the Cuban Revolution

Barack Obama

Raúl Castro
- 2015 168th Grand National: Jockey Leighton Aspell wins his second consecutive GN aboard 25/1 shot Many Clouds; owner Trevor Hemmings' 3rd GN victory