- 1869 – Chinese and Irish laborers for the Central
Pacific Railroad working on the First Transcontinental Railroad lay
10 miles of track in one day, a feat which has never been matched. - 1930 – The first night
game in organized baseball history takes place in Independence, Kansas. - 1932 – A vaccine for yellow fever is announced for use on humans.
- 2001 – Millionaire Dennis Tito becomes the world’s first space tourist.