Katherine Johnson
19182020
American mathematician whose critical calculations for NASA enabled the success of early U.S. crewed spaceflights and helped pioneer the use of computers in aerospace
4 coffadwriaeth wedi'u canfod
Gweld pob un yn Bywydau gyda'r hidlydd wedi'i gymhwyso19181990
American conductor, composer, pianist, and educator whose prolific career earned him international acclaim and numerous awards, shaping classical music for generations
