Ryan Mattheus, American baseball player
Ryan Arthur Mattheus (born November 10, 1983) is an American former professional baseball pitcher. He played in Major League Baseball (MLB) for the Washington Nationals, Los Angeles Angels of Anaheim, and Cincinnati Reds. He is a sinkerballer.

1983Nov, 10
Ryan Mattheus
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Events on 1983
- 24Feb
Japanese American internment
A special commission of the United States Congress condemns the Japanese American internment during World War II. - 19Jul
CT scan
The first three-dimensional reconstruction of a human head in a CT is published. - 24Jul
Sri Lankan Civil War
The Black July anti-Tamil riots begin in Sri Lanka, killing between 400 and 3,000. Black July is generally regarded as the beginning of the Sri Lankan Civil War. - 1Sep
Korean Air Lines Flight 007
Cold War: Korean Air Lines Flight 007 is shot down by a Soviet Union jet fighter when the commercial aircraft enters Soviet airspace, killing all 269 on board, including Congressman Lawrence McDonald. - 6Sep
Korean Air Lines Flight 007
The Soviet Union admits to shooting down Korean Air Lines Flight 007, stating that its operatives did not know that it was a civilian aircraft when it reportedly violated Soviet airspace.