| 2013 | An explosion at a fertilizer plant in the city of West, Texas, causes 15 deaths and major damage to nearby buildings, residences, a nursing home and middle school |
| 2013 | In the U.S., a centerpiece proposal on background checks aimed at tightening gun control, fails in a Senate vote |
| 2012 | U.S. billionaire Warren Buffet discloses that he has prostate cancer |
| 2012 | Jose Garc’a-Margallo y Marfil, Spain's foreign minister, attacks Argentina's decision to nationalize the Argentine oil company YPF |
| 2011 | The London Marathon is won by Emmanuel Matai, who set a new course record |
| 2011 | The Mid-April 2011 Southern United States tornado outbreak results in over 30 deaths; North Carolina is the state worst affected |
| 2010 | Iran's Supreme Leader, Ayatollah Ali Khamenei, calls for the US to be expelled from the international nuclear system because religion prohibits the use of nuclear weapons |
| 2009 | The 5th Summit of the Americas takes place in Port of Spain, Trinidad, thirty-four heads of government attend |
| 1997 | John Bell, 115, recieves new pacemaker |
| 1997 | New Jersey Devil Martin Brodeur is 2nd NHL goalie to score in a playoff game |
| 1995 | 24th Boston Women's Marathon won by Uta Pippig of Germany in 2:25:11 |
| 1995 | 99th Boston Marathon won by Cosmas Ndeti of Kenya in 2:09:22 |
| 1994 | "Little More Magic" closes at Belasco Theater New York City after 30 performances |
| 1994 | "Twilight - Los Angeles 1992" opens at Cort Theater New York City for 72 performances |
| 1994 | 55th PGA Seniors Golf Championship: Lee Trevino wins |
| 1994 | Aruba government of Oduber falls |
| 1994 | Jennie Garth weds Dan Clark |
| 1994 | Val Skinner wins LPGA Atlanta Women's Golf Championship |
| 1993 | Police officers found guilty of violating Rodney Kings civil rights |
| 1993 | STS-56, Discovery, lands |
| 1991 | Dow Jones closes above 3,000 for 1st time (3,004.46) |
| 1991 | Railroad workers go on strike in U.S. |
| 1990 | Gas explodes on passenger train in Kumrahar India, 80 die |
| 1989 | 18th Boston Women's Marath won by Ingrid Kristiansen of Nor in 2:24:33 |
| 1989 | 93rd Boston Marathon won by Abebe Mekonen of Ethiopia in 2:09:06 |
| 1989 | Maximum New York State unemployment benefits raised to $245 per week |
| 1989 | Polish labor union granted legal status |
| 1989 | Soviet-U.S. agreement allows Soviets to fight U.S. pros |
| 1988 | Ethiopian Belayneh Densimo runs world record marathon (2:06:50) |
| 1988 | Nancy Lopez wins LPGA AI Star/Centinela Hospital Golf Classic |
| 1987 | Julius Erving becomes 3rd NBA player to score 30,000 points |
| 1987 | New York Richard Wilbur appointed as U.S. poet laureate |
| 1987 | U.S.S.R. performs nuclear test at Semipalitinsk, Eastern Kazakhstan U.S.S.R. |
| 1986 | IBM produces 1st megabit-chip |
| 1986 | Netherlands and Scilly Islands sign peace treaty (war of 1651) |
| 1986 | Pulitzer prize awarded to Larry McMurtry for "Lonesome Dove" |
| 1984 | Braves pitcher Pascual Perez suspended due to cocaine usage |
| 1984 | Libyan embassy demonstration, 1 shot dead |
| 1983 | 1st National Coin Week begins |
| 1983 | Grete Waltz runs female world record marathon (2:25:29) |
| 1983 | In Warsaw, police route 1,000 Solidarity supporters |
| 1983 | India entered space age launching SLV-3 rocket |
| 1983 | Lynn Adams wins LPGA Combanks Orlando Golf Classic |
| 1983 | Nolan Ryan strikes out his 3,500th batter |
| 1983 | Islanders tie NHL record with 3 shorthanded playoff goals vs Rangers Rangers 7-Isles 6-Patrick Div Finals-Isles hold 2-1 lead Wayne Gretzky scores 7 goals in one Stanley Cup playoff game |
| 1982 | Canada adopts its constitution |
| 1982 | U.S. performs nuclear test at Nevada Test Site |
| 1981 | Isle Potvin's 3 playoff power-play goals tie NHL record vs Oilers |
| 1981 | Ranger's Anders Hedberg is 2nd to score on a Stanley Cup penalty shot |
| 1979 | Brian Clark's "Whose Life is it Anyway?," premieres in London |
| 1978 | 63,500,000 shares traded on New York stock exchange (record) |
| 1978 | 7th Boston Women's Marathon won by Gayle Barron of Georgia in 2:44:52 |
| 1978 | 82nd Boston Marathon won by Bill Rodgers of Mass in 2:10:13 |
| 1978 | Pulitzer prize awarded to Carl Sagan for "Dragons of Eden" |
| 1977 | "I Love My Wife" opens at Barrymore Theater New York City for 864 performances |
| 1977 | Christian-democrats win Belgium parliamentary election |
| 1977 | Sandra Palmer wins LPGA Women's International Golf Tournament |
| 1976 | NL greatest comeback, trailing 12-1 Phillies win 18-16 in 10, Mike Schmidt hits 4 consecutive home runs |
| 1975 | Khmer Rouge captures Phnom Penh, Cambodia (Kampuchea National Day) |
| 1975 | Penguins 6-Isles 4-Quarterfinals-Penguins hold 3-0 lead |
| 1974 | Moslem fundamentalists assault military academy in Heliopolis Egypt |
| 1973 | 2nd Boston Women's Marathon won by Jacqueline Hansen of CA in 3:05:59 |
| 1973 | 77th Boston Marathon won by Jon Anderson of Oreg in 2:16:03 |
| 1972 | 1st Boston Women's Marathon won by Nina Kuscsik of New York in 3:10:26 |
| 1972 | 76th Boston Marathon won by Olavi Suomalainen of Finland in 2:15:39 |
| 1972 | Revised Dutch constitution proclaimed |
| 1972 | Kiteman attempting to throw out 1st ball in Phillie Vet crashes into centerfield seats |
| 1971 | Egypt, Libya and Syria form federation (FAR) |
| 1971 | People's Republic Bangladesh forms, under sheik Mujib ur-Rahman |
| 1970 | Apollo 13 returns back safely to Earth |
| 1970 | Paul McCartney's 1st solo album "McCartney" is released |
| 1969 | Bernadette Devlin elected to British house of commons |
| 1969 | Czechoslovakia's Communist Party chairman Alexander Dubcek deposed |
| 1969 | Mont Expos Bill Stoneman no-hits Phillies, 7-0 |
| 1969 | Sirhan Sirhan is convicted of assassinating Sen Robert F Kennedy |
| 1969 | The Band (formerly The Hawks), perform their 1st concert |
| 1968 | "Fade Out-Fade In" closes at Mark Hellinger Theater New York City after 72 performances |
| 1968 | A's 1st game in Oakland-Alameda Stadium, lose 4-1 to Baltimore Orioles |
| 1967 | Shortwave Radio New York Worldwide goes back on the air after a week off |
| 1967 | Surveyor 3 launched; soft lands on Moon, April 20 |
| 1966 | 100th International soccer meet between Netherlands-Belgium (3-1) |
| 1966 | Carol Mann wins LPGA Raleigh Ladies Golf Invitational |
| 1964 | "Cafe Crown" opens at Martin Beck Theater New York City for 3 performances |
| 1964 | "High Spirits" opens at Alvin Theater New York City for 375 performances |
| 1964 | 1st game at Shea Stadium, New York Mets lose to Pittsburgh Pirates, 4-3 |
| 1964 | Ford Mustang formally introduced ($2368 base) |
| 1964 | Jerrie Mock becomes 1st woman to fly solo around the world |
| 1961 | 1,400 Cuban exiles land in Bay of Pigs attempt to overthrow Castro |
| 1961 | 33rd Academy Awards - "Apartment," Burt Lancaster and Liz Taylor win |
| 1960 | American Samoa sets up a constitutional government |
| 1960 | Cleveland Indians trade Rocky Colavito to Tigers for Harvey Kuenn |
| 1958 | Brussel's (Belgium) World Fair opens |
| 1956 | Bulgaria premier Tchervenkov resigns |
| 1956 | Kominform disbands |
| 1956 | Premium Savings Bonds introduced in Great Britain |
| 1956 | U.S.S.R.'s Cominform (Parliament) dissolves |
| 1956 | Willie Mosconi sinks 150 consecutive balls in a billiard tournament |
| 1955 | Betty Jameson wins LPGA Babe Didrikson Zaharias Golf Open |
| 1953 | Mickey Mantle hits a 565' (172 m) home run in Washington D.C.'s Griffith Stadium |
| 1951 | New York Yankee Mickey Mantle's 1st game, he goes 1 for 4 |
| 1947 | Jackie Robinson bunts for his 1st major league hit |
| 1946 | Syria declares independence from French administration |
| 1945 | 8th Air Force bombs Dresden |
| 1945 | German occupiers flood Wieringermeer, Netherlands |
| 1945 | Mussolono flees from Salo to Molan |
| 1945 | U.S. troops lands in Mindanao |
| 1943 | Admiral Yamamoto flies from Truk to Rabaul |
| 1942 | 12 Lancasters bombs MAN-factory in Augsburg |
| 1942 | Operations begin to destroy Sobibor Concentration Camp |
| 1941 | British troop land in Iraq/Yugoslavia; surrender to nazis |
| 1941 | Office of Price Administration forms (handled rationing) |
| 1939 | Joe Louis KOs Jack Roper in 1 for heavyweight boxing title |
| 1939 | SN Behrman's "No Time for Comedy," premieres in New York City |
| 1939 | Stalin signs British-France-Russian anti-nazi pact |
| 1937 | Cartoon characters Daffy Duck, Elmer Fudd and Petunia Pig, debut |
| 1935 | Provincial-National elections (Musserts NSB achieves 7.9%/44 chairs) |
| 1934 | New Fenway Park opens, Washington Senators beat Red Sox 6-5 |
| 1933 | Chicago Bears win their 1st NFL Game beating New York Giants 23-21 |
| 1932 | Emperor Haile Selassie of Ethiopia ends slavery |
| 1930 | Abkhazian ASSR forms in Georgian SSR |
| 1927 | Japan's Wakarsoeki government falls/Baron Tanaka becomes premier |
| 1925 | New York Yankee Babe Ruth has ulcer surgery |
| 1925 | Paul Painleve follows Edouard Herriot on as French premier |
| 1924 | Metro Pictures, Goldwyn Pictures and Louis B. Mayer merged to form MGM |
| 1923 | Longest NL opening game, Phillies and Dodgers tie 5-5 in 14 |
| 1920 | American Professional Football Association forms (NFL) |
| 1912 | 1st unofficial gold record (Al Jolson's "Ragging The Baby To Sleep") |
| 1907 | Ellis Island, New York - 11,745 immigrants arrive |
| 1905 | U.S. Supreme Court judges maximum work day unconstitutional |
| 1900 | 7 high chiefs of American Samoa sign Instrument of Cession |
| 1895 | Treaty of Shimonoseki signed, ends 1st Sino-Japanese War (1894-95) |
| 1892 | 1st Sunday NL baseball game, Reds beat Cards 5-1 |
| 1875 | "Snooker" (variation of pool) invented by Sir Neville Chamberlain |
| 1869 | 1st pro baseball games-Cincinnati Reds 24, Cincinnati amateurs 15 |
| 1865 | Mary Surratt is arrested as a conspirator in Lincoln's assassination |
| 1864 | Battle of Plymouth, North Carolina |
| 1864 | Bread revolt in Savannah, Georgia |
| 1864 | Grant suspends prisoner-of-war exchanges |
| 1863 | R Grierson's: La Grange, Tennessee to Baton Rouge, Louisiana |
| 1861 | Indianola Texas - "Star of West" taken by Confederacy |
| 1861 | Virginia is 8th state to secede |
| 1853 | Thorbecke government resigns |
| 1853 | U.S. Marine Hospital at Presidio San Francisco forms |
| 1839 | Guatemala forms republic |
| 1824 | Russia abandons all North American claims south of 54 degrees 40' N |
| 1817 | 1st U.S. school for deaf (Hartford, Conn) |
| 1808 | Bayonne Decree by Napoleon I of France orders seizure of U.S. ships |
| 1793 | Battle of Warsaw |
| 1758 | Francis Williams, 1st U.S. black college graduate, publishes poems |
| 1747 | French troops occupy Zeeuws-Flanders, Netherlands |
| 1711 | Charles VI Habsburg becomes king of Austria |
| 1704 | 1st successful U.S. newspaper; published in Boston by John Campbell |
| 1629 | 1st commercial fishery established |
| 1596 | Arch duke Albrecht of Austria occupies Calais |
| 1555 | Siena surrenders for Spanish troops |
| 1534 | Sir Thomas Moore confined in London Tower |
| 1524 | Giovanni Verrazano, a florentine navigator, discovers New York Bay |
| 1492 | Christopher Columbus signs contract with Spain to find Indies |
| 1421 | Dikes at Dort Holland breaks, 100,000 drown |
| 858 | Benedict III ends his reign as Catholic Pope |