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AIzaSyB4mHJ5NPEv-XzF7P6NDYXjlkCWaeKw5bc
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1 ene 1838 año - 1838 Helmholtz began studies in the army's medical corps
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Important dates in psychological history
By
Natasha Gualy
7 mar 2018
0
0
853
fecha:
1 ene 1838 año
Ahora mismo
~ 187 years ago
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