// todo need optimize like in event.jsp. Add indexing or not indexing this page. Chinese invent abacus for mathematical calculations. (2 Apr 570 Jahr – 16 Jul 570 Jahr) (Band der Zeit)
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Chinese invent abacus for mathematical calculations. (2 Apr 570 Jahr – 16 Jul 570 Jahr)

Zugefügt zum Band der Zeit:

Major World Events

Bycole bennett
16 Okt 2018

Datum:

2 Apr 570 Jahr
16 Jul 570 Jahr
~ 3 months and 15 days
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