States rights and slavery.
Answer:
Human societies began to change at the conclusion of the last Ice Age as war between the tribes occurred.
Explanation:
Migration led to the population of the world because human life started in Africa, meaning that for people to inhabit places that are now known as America, Europe, Australia, etc., they had to all migrate out of Africa.
The phalanx was arectangular<span> mass military </span>formation<span>, usually composed entirely of </span>heavy infantry<span> armed with </span>spears<span>, </span>pikes<span>, </span>sarissas<span>, or similar </span>weapons<span>. The term is particularly and originally used to describe the use of this formation in </span>Ancient Greek warfare<span>, although the ancient Greek writers used it to also describe any massed infantry formation, regardless of its equipment.</span>
