National Day of Mourning (Canada. Every year on April 28 we pay our respects to, and remember, the thousands of workers who have been killed, injured or suffered illness as a result of work-related incidents)
Restoration of Sovereignty Day in Japan (主権回復の日 Shuken kaifuku no hi - It marks the end of the American occupation of Japan on 28 April 1952)
Statehood Day (Maryland, 1788)
1986 – The United States Navy aircraft carrier USS Enterprise becomes the first nuclear-powered aircraft carrier to transit the Suez Canal, navigating from the Red Sea to the Mediterranean Sea to relieve the USS Coral Sea.
1970 – Vietnam War: U.S. President Richard Nixon formally authorizes American combat troops to fight communist sanctuaries in Cambodia.
1967 – Vietnam War: Boxer Muhammad Ali refuses his induction into the United States Army and is subsequently stripped of his championship and license.
1965 – United States occupation of the Dominican Republic: American troops land in the Dominican Republic to "forestall establishment of a Communist dictatorship" and to evacuate U.S. Army troops.
1952 – Occupied Japan by the Supreme Commander for the Allied Powers: The United States occupation of Japan ends as the Treaty of San Francisco, ratified September 8, 1951, comes into force.
1949 – The Hukbalahap are accused of assassinating former First Lady of the Philippines Aurora Quezon, while she is en route to dedicate a hospital in memory of her late husband; her daughter and ten others are also killed.
1948 – Igor Stravinsky conducted the premier of his American ballet, Orpheus at the New York City Center.
1941 – The Ustaše massacre nearly 200 Serbs in the village of Gudovac, the first massacre of their genocidal campaign against Serbs of the Independent State of Croatia.
1930 – The Independence Producers hosted the first night game in the history of Organized Baseball in Independence, Kansas.
1910 – Frenchman Louis Paulhan wins the 1910 London to Manchester air race, the first long-distance aeroplane race in England.
1887 – A week after being arrested by the Prussian Secret Police, French police inspector Guillaume Schnaebelé is released on order of William I, German Emperor, defusing a possible war.
1869 – Chinese and Irish laborers for the Central Pacific Railroad working on the First Transcontinental Railroad lay ten miles of track in one day, a feat which has never been matched.
1788 – Maryland becomes the seventh state to ratify the United States Constitution.
1503 – The Battle of Cerignola is fought. It is noted as the first battle in history won by small arms fire using gunpowder.
1253 – Nichiren, a Japanese Buddhist monk, propounds Namu Myōhō Renge Kyō for the very first time and declares it to be the essence of Buddhism, in effect founding Nichiren Buddhism.
357 – Emperor Constantius II enters Rome for the first time to celebrate his victory over Magnus Magnentius.
1995 – Melanie Martinez, American singer
1986 – Jenna Ushkowitz, Korean-American actress, singer, and dancer
1983 – David Freese, American baseball player
1982 – Chris Kaman, American basketball player
1981 – Jessica Alba, American model and actress
1979 – Scott Fujita, American football player and sportscaster
1978 – Nate Richert, American actor
1973 – Earl Holmes, American football player and coach
1973 – Jorge Garcia, American actor and producer
1972 – Violent J, American rapper, Insane Clown Posse
1966 – John Daly, American golfer
1966 – Too Short, American rapper, producer and actor
1965 – Jennifer Rardin, American author (d. 2010)
1964 – Barry Larkin, American baseball player, manager, and sportscaster
1964 – L'Wren Scott, American model and fashion designer (d. 2014)
1960 – Elena Kagan, American lawyer and jurist, Associate Justice of the Supreme Court of the United States
1960 – Tom Browning, American baseball player
1958 – Hal Sutton, American golfer
1954 – Michael P. Jackson, American politician, 3rd Deputy Secretary of Homeland Security
1954 – Ron Zook, American football player and coach
1954 – Timothy Curley, American educator
1953 – Kim Gordon, American singer-songwriter, guitarist, and producer
1952 – Chuck Leavell, American singer-songwriter and keyboard player
1952 – Mary McDonnell, American actress
1950 – Jay Leno, American comedian, talk show host, and producer
1950 – Willie Colón, Puerto Rican-American trombonist and producer
1949 – Bruno Kirby, American actor and director (d. 2006)
1949 – Paul Guilfoyle, American actor
1948 – Marcia Strassman, American actress and singer (d. 2014)
1946 – Larissa Grunig, American theorist and activist
1944 – Alice Waters, American chef and author
1944 – Elizabeth LeCompte, American director and producer
1941 – Ann-Margret, Swedish-American actress, singer, and dancer
1941 – Karl Barry Sharpless, American chemist and academic, Nobel Prize laureate
1938 – Madge Sinclair, Jamaican-American actress (d. 1995)
1934 – Lois Duncan, American journalist and author (d. 2016)
1933 – Miodrag Radulovacki, Serbian-American neuropharmacologist and academic (d. 2014)
1930 – Carolyn Jones, American actress (d. 1983)
1930 – James Baker, American lawyer and politician, 61st United States Secretary of State
1928 – Eugene Merle Shoemaker, American geologist and astronomer (d. 1997)
1926 – Bill Blackbeard, American historian and author (d. 2011)
1926 – Harper Lee, American novelist (d. 2016)
1926 – James Bama, American artist and illustrator
1925 – T. John Lesinski, American judge and politician, 51st Lieutenant Governor of Michigan (d. 1996)
1924 – Blossom Dearie, American singer and pianist (d. 2009)
1924 – Dick Ayers, American author and illustrator (d. 2014)
1923 – Carolyn Cassady, American author (d. 2013)
1923 – William Guarnere, American sergeant (d. 2014)
1921 – Rowland Evans, American soldier, journalist, and author (d. 2001)
1917 – Robert Cornthwaite, American actor (d. 2006)
1913 – Rose Murphy, American singer (d. 1989)
1911 – Lee Falk, American director, producer, and playwright (d. 1999)
1910 – Sam Merwin, Jr., American author (d. 1996)
1909 – Arthur Võõbus, Estonian-American theologist and orientalist (d. 1988)
1908 – Ethel Catherwood, American-Canadian high jumper and javelin thrower (d. 1987)
1906 – Kurt Gödel, Czech-American mathematician, philosopher, and academic (d. 1978)
1886 – Art Shaw, American hurdler (d. 1955)
1878 – Lionel Barrymore, American actor and director (d. 1954)
1874 – Sidney Toler, American actor and director (d. 1947)
1865 – Charles W. Woodworth, American entomologist and academic (d. 1940)
1819 – Ezra Abbot, American scholar and academic (d. 1884)
1758 – James Monroe, American soldier, lawyer, and politician, 5th President of the United States (d. 1831)
2017 – Mariano Gagnon, American Catholic priest and author (b. 1929)
2015 – Marcia Brown, American author and illustrator (b. 1918)
2015 – Michael J. Ingelido, American general (b. 1916)
2014 – Dennis Kamakahi, American guitarist and composer (b. 1953)