Verified answer

open to new discoveries

from about 300,000 to 30,000 before now

co incident with us ( homo sapiens ) for maybe 100,000 years?

general knowledge of TV documentaries and books

read the " Neanderthal enigma" to realize how difficult the Q of human origins really is

The ancestors of Neanderthals moved into Europe and west Asia about 600,000 years ago, and began to change as they adapted to the colder conditions. Full Neanderthals traits appeared around 200,000 years ago. The Neanderthals went extinct 27,000 years ago.