The main focus city of the Crusades was Jerusalem. The idea was that it was Christian territory, or at least should be Christian territory, and they always went to reconquer it. The fourth Crusade never made it to Jerusalem because they were busy sacking Constantinople which had a lot of troubles due to constant wars of the Byzantine Empire.
The main purpose of the National Association for the Advancement of Colored People is to make sure that the rights of colored people will be provided - whether it's educational, economic, political and social. This is all for the sake eliminating racial discrimination.
Answer:
they came up with irrigation which showed later civilizations ways to help them farm they also built the first city in the world. they made a language for others to use. they also made Hammurabi's code for other civilizations to use. made the first ever potential number system. they made the wheel and chariot.
Explanation:
