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/pt/
pt
AIzaSyAYiBZKx7MnpbEhh9jyipgxe19OcubqV5w
April 1, 2024
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31 dez 1965 ano - Also late 1965 - The ELKA 6521 designed by Bulgaria is produced; it is the first calculator with a square root function.
Adicionado na linha do tempo:
4 out 2017
0
0
496
Calculator history
Data:
31 dez 1965 ano
Agora
~ 58 years ago