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10 h 45 m, 1 ene 1945 año - Alden becomes Director
Descripción:
A former astronomer of the Observatory came back to lead the programs and other astronomers
Añadido al timeline:
History of McCormick Observatory
By
Mickayla Mabe
7 feb 2018
0
0
297
fecha:
10 h 45 m, 1 ene 1945 año
Ahora mismo
~ 79 years ago
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