Humans were extinct 900,000 years ago: only 1,280 individuals remained.

Yi-Hsuan Pan the study's senior author,
British human evolution experts Nick Ashton and Chris Stringe said:
Scientists from East China Normal University
The findings of the study, published in the journal Science, showed that 900000 years ago only 1280 individuals remained, and it took 117000 years to cool
Neanderthals and Denisovans are thought to have lived during this period as well