April 28 is the 118th day of the year (119th in leap years) in the Gregorian Calendar, with 247 days remaining.

  1. 1788 - Maryland becomes the seventh state to ratify the Constitution of the United States.
  2. 1789 - Mutiny on the HMS Bounty. Captain William Bligh and 18 sailors are set adrift and the rebel crew returns to Tahiti briefly and then sets sail for Pitcairn Island.
  3. 1930 - The first night game in organized baseball history takes place in Independence, Kansas.
  4. 1932 - A vaccine for yellow fever is announced for use on humans.
  5. 1945 - Benito Mussolini and his mistress Clara Petacci are executed by a firing squad consisting of members of the Italian resistance movement.
  6. 1952 - Dwight D. Eisenhower resigns as Supreme Commander of NATO.
  7. 1988 - Near Maui, Hawaii, flight attendant Clarabelle "C.B." Lansing is sucked out of Aloha Flight 243, a Boeing 737, and falls to her death when part of the plane's fuselage rips open in mid-flight.
  8. 1994 - Former Central Intelligence Agency official Aldrich Ames pleads guilty to giving U.S. secrets to the Soviet Union and later Russia.
  9. 1996 - Whitewater scandal: President Bill Clinton gives 4½ hour videotaped testimony for the defense.
  10. 1997 - The 1993 Chemical Weapons Convention goes into effect, with Russia, Iraq and North Korea notable nations who had not ratified the treaty.
  11. 2001 - Millionaire Dennis Tito becomes the world's first space tourist.
  12. 2003 - Apple Computer's iTunes Music Store launches, selling 1 million songs in its first week.
  13. 2005 - The Patent Law Treaty goes into effect.