Article says this skull fragment is possibly Homo Erectus.
This says they left Africa within in that time:
https://en.wikipedia.org/wiki/Homo_erectus
This has further details on human evolution:
https://en.wikipedia.org/wiki/Human#Evolution
This covers in more detail the time modern humans migrated from Africa:
https://en.wikipedia.org/wiki/Recent_African_origin_of_moder...