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3
1870
Charles Drew helped expand the knowledge of blood banking throughout his life.
1925
1930
Charles Babbage invented his computer in the year 1822
Charles Thuber invented the typewriter in 1843 :)
he invented scotch tape in 1925
June 3, 1904.
In 1944
IN 1952
Minnie Lenore Robbins in 1939.