28 April History
- 357 - Constantius II visits Rome for the first time.
- 1282 - Villagers in Palermo lead a revolt against French rule in Sicily.
- 1635 - Virginia Governor John Harvey is accused of treason and removed from office.
- 1760 - French forces besieging Quebec defeat the British in the second battle on the Plains of Abraham.
- 1788 - Maryland becomes the seventh state to ratify the constitution.
- 1789 - The crew of the HMS Bounty mutinies against Captain William Bligh.
- 1818 - President James Monroe proclaims naval disarmament on the Great Lakes and Lake Champlain.
- 1856 - Yokut Indians repel an attack on their land by 100 would-be Indian fighters in California.
- 1902 - Revolution breaks out in the Dominican Republic.
- 1910 - The first night air flight is performed by Claude Grahame-White in England.
- 1916 - British declare martial law throughout Ireland.
- 1919 - Les Irvin makes the first jump with an Army Air Corps parachute.
- 1920 - Azerbaijan joins the Soviet Union.
- 1930 - The first organized night baseball game is played in Independence, Kansas.
- 1932 - A yellow fever vaccine for humans is announced.
- 1945 - Benito Mussolini is killed by Italian partisans.
- 1946 - The Allies indict Tojo on 55 counts of war crimes
- 1947 - Norwegian anthropologist Thor Heyerdahl and five others set out in a balsa wood craft known as Kon Tiki to prove that Peruvian Indians could have settled in Polynesia.
- 1953 - French troops evacuate northern Laos.
- 1965 - The U.S. Army and Marines invade the Dominican Republic.
- 1967 - Muhammad Ali refuses induction into the U.S. Army and is stripped of boxing title.
- 1969 - Charles de Gaulle resigns as president of France.
28 April Birthdays
- 1442 - Edward IV, king of England (1461-1470, 1471-1483), first king of the House of York.
- 1758 - James Monroe, fifth President of the United States (1817-1825).
- 1878 - Lionel Barrymore, American stage, screen and radio actor.
- 1892 - John Jacob Niles, American folk singer and folklorist.
- 1898 - William Soutar, Scottish poet.
- 1902 - Johan Borgen, Norwegian novelist.
- 1912 - Odette Hallowes, British secret agent.
- 1926 - Harper Lee, Pulitzer Prize-winning novelist (To Kill a Mockingbird).
- 1930 - James Baker III, Cabinet secretary for Presidents Reagan and Bush.
- 1936 - Kenneth White, poet and essayist.
- 1937 - Saddam Hussein, President of Iraq.
- 1937 - Jean Redpath, Scottish folk singer.