Question

According to scientists, when did humans began to migrate out of Africa? .

When do most scientists believe that humans first arrived in North America? .

Answer 1

Humans began to migrate out of Africa around 200,000 years ago. The most accepted theories suggest that humans first arrived in North America between 20,000 and 14,000 years ago.

Step-by-step explanation:

Scientists believe humans began to migrate out of Africa around 200,000 years ago. They initially migrated deeper into southern and eastern Africa and then expanded north and west towards the Mediterranean Sea. Around 100,000 years ago, groups of Homo sapiens left Africa and began a global migration that lasted for tens of thousands of years. After crossing the Sinai into southwest Asia, they likely followed the coasts of Asia and eventually reached India and China by about 70,000 years ago.

Regarding the migration to North America, the exact timing and routes are still debated among scientists. The two most accepted theories are the Bering Land Bridge and the coastal migration theories. According to these theories, humans first arrived in North America between 20,000 and 14,000 BP, which means around 20,000 to 14,000 years before the present. The available evidence points to the migration originating from Asia.

Answer 2

1. Early human migrations are the earliest migrations and expansions of archaic and modern humans across continents and are believed to have begun approximately 2 million years ago with the out of Europe migration of Homo erectus.

2.Humans colonized the New World earlier than previously thought—a ... For decades scientists thought the first Americans were Asian big-game ... people, after a site near Clovis, N.M., where many of their tools came to light. ... Intrigued by the findings, some scientists began looking for similar evidence in North America.

Step-by-step explanation: