The Queen knighted British Captain Tom Moore on his 100th birthday.
The fall of Saigon marks the end of the Vietnam War.
The Church of Satan was established at the Black House in San Francisco.
Adolf Hitler and his newlywed wife, Eva Braun, committed suicide in their bunker in Berlin, Germany.
Germany and its World War I allies become the first countries to use daylight saving time (DST).
Albert Einstein completed his doctoral thesis at the University of Zurich and was awarded a Ph.D.
Hawaii became a US territory when President William McKinley signed it into law.
Louisiana became the 18th state to join the United States of America.
The USA signed The Louisiana Purchase in Paris.
George Washington gave his first speech as the first President of the United States.
