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Второй период (1 jan 800 ano – 1 jan 1400 ano)

Descrição:

Ознаменовался введением в обиход полиалфавитных шифров.

Adicionado na linha do tempo:

Шифрование данных

ByNick Vlasenko
27 jan 2023
0
0
241

Data:

1 jan 800 ano
1 jan 1400 ano
~ 600 years
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