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1 Jan 1902 Jahr - Hired at Harvard Observatory

Beschreibung:

Leavitt is hired at Havard's observatory and works there for the next 19 years.

Zugefügt zum Band der Zeit:

Henrietta Leavitt

ByShawn Cunning

2 Okt 2018

0

0

495

Datum:

1 Jan 1902 Jahr

Jetzt

~ 123 years ago

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