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13 h 26 m, 1 jan 1913 ano - Samuel Alfred Mitchell becomes director
Descrição:
Mitchell took over and brought new ideas and programs to the Observatory
Adicionado na linha do tempo:
7 fev 2018
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293
History of McCormick Observatory
Data:
13 h 26 m, 1 jan 1913 ano
Agora
~ 111 years ago