Mariano Rivera is the last player that Major League Baseball grandfathered in that still continues to wear #42. After Mariano, the number will not be issued again.
Hank Aaron was the last Negro League player to have a regular position in the Major League. Minnie Minoso was the last to actually play in a MLB game. (Two games for the White Sox in 1980.)
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Pete Rose of the Cincinnati Reds was the last player-manager in baseball.
Mt. Fuji was last active in 1708 AD.