April 28

Thursday 28, 1977:

1977 - The Budapest Treaty on the International Recognition of the Deposit of Microorganisms for the Purposes of Patent Procedure is signed.

Tuesday 28, 1970:

Vietnam War: U.S. President Richard M. Nixon formally authorizes American combat troops to fight communist sanctuaries in Cambodia.

Wednesday 28, 1965:

United States troops land in the Dominican Republic to "forestall establishment of a Communist dictatorship" and to evacuate U.S. citizens.

Monday 28, 1930:

The first night game in organized baseball history takes place in Independence, Kansas.

Tuesday 28, 1789:

Mutiny on the HMS Bounty. Captain William Bligh and 18 sailors are set adrift and the rebel crew sets sail for Pitcairn Island.