- 753BC Romulus and Remus found Rome.
- 1913 Chinese-American biochemist Choh-hao Li born; isolated in pure form ACTH(the adrenocorticotropic hormone that treats arthritis) and HGH (the human growth hormone, somatotropin); discovered ß-endorphin, a natural painkiller; first to synthesize "Growth Factor 1", which promotes the growth of cartilage and bone.
- 1994 Polish-American astronomer Alex Wolszczan announced his team's discovery, the 1st extrasolar planets.
Monday, April 21, 2008
Today in History: April 21
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