What is certain, however, is that around 120,000 years ago, at least, the modern Homo sapiens first appeared and lived contemporaneously with the Neanderthal for at least 90,000 years, until the Neanderthal disappeared 30,000 years ago.
Over the last 120,000 years Neanderthals have disapeared at a consistent rate of decline
( z1 disappear :ARG1 ( z2 person :mod ( z3 species :name ( z4 name :op "Neanderthals" ) ) ) :time ( z5 before :op ( z6 now ) :duration ( z7 temporal-quantity :quant 120000 :unit ( z8 year ) ) ) :manner ( z9 rate :ARG1-of ( z10 consistent ) :mod ( z11 decline :ARG1 z2 ) ) )