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.
American settlers took their land.
Answer:
Another effect of urbanization is urban sprawl. Urban sprawl is when the population of a city becomes dispersed over an increasingly large geographical area. This movement from higher density urban cores to lower density suburbs means that as cities expand, they often begin to take up significant tracts of land formerly used for agriculture.
Explanation:
With the rising numbers of the human population after having steady lifestyles, many people come together (those who think pretty much the same) and lived in the same area. These soon formed civilizations like Mesopotamia and the such. They found a common language, and built cities, forts, and towns, while growing and harvesting crops around it. Soon, when the city is large enough, the citizens may start to reach out to other cities to make pacts and NAA (non-aggression-pact).
Now, after years, early civilizations may cooperate by trading resources that each have (that the other doesn't), for example, trading fish for "better" lumber, or trading metal for livestocks. As the trade increases, so do their co-operations, and the more each city cooperates with others, the more products they have. Before, they would have to work with what they can grow, cut-down, and find, but later on, with more resources that they can access, they can build much more advanced buildings, tools, etc. This is how a civilization thrives.
hope this helps
