(22nd century BC - 21st century BC - 20th century BC - other centuries)
(4th millennium BC - 3rd millennium BC - 2nd millennium BC)
Events
Inventions, discoveries, introductions
- 2000 BC -- First written accounts of Schizophrenia.
- 2037 BC -- Emperor Shen Nong makes first (perhaps mythical) tea drink by boiling fresh leaves
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