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AIzaSyAYiBZKx7MnpbEhh9jyipgxe19OcubqV5w
August 1, 2025
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1 jan 1868 ano - US ophthalmologist John Green perfects the fan and block test for astigmatism 1868
Adicionado na linha do tempo:
The development of optometry through the ages
By
Christian Pot
10 abr 2021
0
0
764
Data:
1 jan 1868 ano
Agora
~ 157 years ago
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