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2 events

5th century

499★★★★★
Aryabhata writes the Aryabhatiya
Mathematician-astronomer Aryabhata completes the Aryabhatiya, treating place-value notation, an approximation of pi and the Earth's rotation.
Science· India

7th century

628★★★★★
Brahmagupta sets out rules for zero
In the Brāhmasphuṭasiddhānta, the Indian mathematician Brahmagupta gives the first known rules for arithmetic with zero and negative numbers.
Science· India

Data compiled from Wikipedia/Wikidata and the sources listed on each event.

Timeline · World History Timeline

Timeline

5th century

Aryabhata writes the Aryabhatiya

7th century

Brahmagupta sets out rules for zero