Imagine that you have a time machine that only works in leaps of exactly 500 years. So you could travel to exactly 500 years ago, 1000 years ago, 1500 years ago, etc. Which African civilizations discussed in this lesson could you visit?

- D'mt civilization;

in the period of 500 BC, the kingdom of D'mt in what is now Ethiopia was prospering, and the D'mt civilization set the basis for the multiple civilization that descended from it in the centuries to come.

- Egyptian civilization and Nubian civilization;

In the year 2,000 BC the Egyptians were thriving in the northeaster part of Africa, along the shores of the Nile River, and they were one of the greatest civilizations of the ancient world. Just little south of them, was the Nubian civilization, very well known for its excellent cavalry and military character.

Explanation:

2 is armenia i think

donald carl johanson (born june 28, 1943) is an american paleoanthropologist. he is known for discovering – with yves coppens and maurice taieb – the fossil of a female hominin australopithecine known as "lucy" in the afar triangle region of hadar, ethiopia.

hope this !

i googled "who was kolson johanson" and this is the answer i found.

sorry if this is incorrect.