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/pt/
AIzaSyB4mHJ5NPEv-XzF7P6NDYXjlkCWaeKw5bc
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12 maio 1955 ano - B. F. Skinner's Improved Teaching Machine
Descrição:
B. F. Skinner of Harvard University files a patent for an improved teaching machine.
Adicionado na linha do tempo:
Timeline of IDT History
By
Christian
12 jan 2020
0
0
352
Data:
12 maio 1955 ano
Agora
~ 70 years ago
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