1528 - Shipwrecked Spanish conquistador Álvar Núñez Cabeza de Vaca becomes the first known European to set foot in Texas.
1572 - Supernova is observed in constellation known as Cassiopeia
1903 - USA recognizes independence of Panama
1918 - Republic of Poland proclaimed
1985 - 22nd Space Shuttle Mission (61A) -Challenger 9- lands at Edwards AFB
1985 - Space shuttle Challenger lands at Edwards, Calif
INTERNATIONAL DAY FOR PREVENTING THE EXPLOITATION OF THE ENVIRONMENT IN WAR AND ARMED CONFLICT
