1942 – Actress Hedy Lamarr and composer George Antheil receive a patent for a Frequency-hopping spread spectrum communication system that later became the basis for modern technologies in wireless telephones and Wi-Fi.

1945 – World War II: Nagasaki is devastated when an atomic bomb, Fat Man, is dropped by the United States B-29 Bockscar. Thirty-five thousand people are killed outright, including 23,200–28,200 Japanese war workers, 2,000 Korean forced workers, and 150 Japanese soldiers.

 Red_Dragon wrote:
 
28IF

1988 – The first night baseball game in the history of Chicago's Wrigley Field (game was rained out in the fourth inning).

1969 – At a zebra crossing in London, photographer Iain Macmillan takes the iconic photo that becomes the cover image of the Beatles' album Abbey Road.

2012 – NASA's Curiosity rover lands on the surface of Mars.

1965 – US President Lyndon B. Johnson signs the Voting Rights Act of 1965 into law.

1945-Hiroshima, Japan is devastated when the atomic bomb "Little Boy" is dropped by the United States B-29 Enola Gay. Around 70,000 people are killed instantly, and some tens of thousands die in subsequent years from burns and radiation poisoning.

1957 – American Bandstand, a show dedicated to the teenage "baby-boomers" by playing the songs and showing popular dances of the time, debuts on the ABC television network.

1987 – The Federal Communications Commission rescinds the Fairness Doctrine which had required radio and television stations to present controversial issues "fairly".

1693 – Date traditionally ascribed to Dom Perignon's invention of champagne; it is not clear whether he actually invented champagne, however he has been credited as an innovator who developed the techniques used to perfect sparkling wine.

1939 – Albert Einstein and Leo Szilard write a letter to Franklin D. Roosevelt, urging him to begin the Manhattan Project to develop a nuclear weapon.

1981 – MTV begins broadcasting in the United States and airs its first video, "Video Killed the Radio Star" by The Buggles.

1965 – Frank Herbert's novel, Dune was published for the first time. It was named as the world's best-selling science fiction novel in 2003.

1956 – A joint resolution of the U.S. Congress is signed by President Dwight D. Eisenhower, authorizing In God We Trust as the U.S. national motto.

1958 – U.S. President Dwight D. Eisenhower signs into law the National Aeronautics and Space Act, which creates the National Aeronautics and Space Administration (NASA).

1921 – Adolf Hitler becomes leader of the National Socialist German Workers Party.

1940 – The animated short A Wild Hare is released, introducing the character of Bugs Bunny.

1965 – Bob Dylan goes electric at the Newport Folk Festival, signaling a major change in folk and rock music.

1969 – Apollo program: Apollo 11's crew successfully makes the first manned landing on the Moon in the Sea of Tranquility. Americans Neil Armstrong and Buzz Aldrin become the first humans to walk on the Moon six and a half hours later.