During the era, humans left the continent of and spread across the globe. they were , which means they moved from place to place in search of food. they survived by tracking game and collecting plants and berries, a practice called .

Paleolithic, Africa, nomads, hunting and gathering.

Explanation:

It was during the Paleolithic Era that humans began to spread across the world. This was before the development of agriculture, which meant that these groups were hunter-gatherers. They were also nomads, as they moved from place to place looking for food. Eventually, agriculture was developed in some areas, such as Mesopotamia and China.

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explanation:

regarding the law, the 15th amendment was specifically designed thinking in the rights of black free men.

even though ratified on february 3, 1870, the promise of the 15th amendment would not be fully applied for a long time.poll taxes and literacy tests would allow southern states disenfranchise african americans. only in 1965 the voting rights for african americans would be actually able to vote in the south.

in 1965, president johnson signed the voting rights act, which aimed to overcome legal barriers that prevented african americans from voting as it was guaranteed by the 15th amendment to the u.s. constitution.