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AIzaSyB4mHJ5NPEv-XzF7P6NDYXjlkCWaeKw5bc
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Helps design the Hale Telescope on Mount Palomar in California (22 ene 1941 año – 30 abr 1948 año)
Añadido al timeline:
Henrietta Leavitt
By
Shawn Cunning
2 oct 2018
0
0
499
fecha:
22 ene 1941 año
30 abr 1948 año
~ 7 years and 3 months
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