August 01

1774 - Scientist Joseph Priestley discovers oxygen gas, corroborating the prior discovery of this element by chemist Carl Wilhelm Scheele.
2000 - A man in Israel became the first recipient of the "Jarvik 2000," the first total artificial heart that can maintain blood flow, in addition to generating a pulse.

2408 - Stovon Stewart is assigned as commanding officer of the USS Darwin, GEC-9000.