If you go back in time about [75,000] to 100,000 years ago, let's look at human evolution, it turns out that something very important happened around 75,000 years ago.
Si vas p'atrás nel tiempu, entre 75 y 100 mil años, miremos a la evolución humana, xurde qu'algo perimportante pasó fái 75.000 años.ted2019 ted2019