How long have humans been in existence?

Answer 1

2 million years

Humans have really only been on the planet for a fraction of the lifetime of the Earth. Archeologists estimate that modern humans have been on the Earth for about 200,000 years.

Humans originated about 200,000 years ago in the Middle Paleolithic period in southern Africa. By 70,000 years ago, humans migrated out of Africa and began colonizing the entire planet. They spread to Eurasia and Oceania 40,000 years ago, and reached the Americas by 14,500 years ago.

One of the oldest sites of human settlement is located at Middle Awash in Ethiopia, where humans lived 160,000 years ago.

Answer 2

Black people (and white people as well) have been on the earth for about 1,00,000 years approximately.

Humans (both black and white) have originated from more primitive animals like apes.

Black people are natural selection of intense sunlight in tropical countries. White people are natural selection of less sunlight in temperate countries.

By the way, both white and black people have same number of melanocytes in their skin. Only difference is that, the amount and colour of pigment secreted by the melanocytes differ from race to race.

Answer 3

Black people (and white people as well) have been on the earth for about 1,00,000 years approximately.
Humans (both black and white) have originated from more primitive animals like apes.

Black people are natural selection of intense sunlight in tropical countries. White people are natural selection of less sunlight in temperate countries.

By the way, both white and black people have same number of melanocytes in their skin. Only difference is that, the amount and colour of pigment secreted by the melanocytes differ from race to race.

Answer 4

at least 25 thousand years ago, as people used to live for over 900 years back then.

Answer 5

Recent discoveries put that at about 5 million years.

Answer 6

Scientists estimate that the hominid lineage diverged from the ape lineage 5 to 8 million years ago. Homo sapiens, the species to which we belong, has existed for more than 100,000 years.