This is an argument I haven't heard before. I assume by "historical"
evidence you mean written history. Do you really think that Homo sapiens
But as you must have realized, Cummins "argument" is easily explained when realizing the "written" requirement.
is so smart that we must have invented writing within the first few years
of our existence (whether created or evolved)? This seems equivalent to
arguing that man can't be much older than the printing press, or the steam
engine, or the theory of quantum mechanics.