Byzantines did play a role in the first crusade as they allowed the crusaders to pass through their territory, but provided no support.
The First Crusade (1096–1099) was the first in a line of crusades, or religious warfare, that the Latin Church of the Middle Ages started, encouraged, and occasionally oversaw. The Holy Land's liberation from Islamic dominion was the goal. Jerusalem had been governed by Muslims for hundreds of years, but by the 11th century, the Seljuk invasion of the area threatened the Byzantine Empire as well as the local Christian communities and Western pilgrimages. The Byzantine emperor Alexios I Komnenos requested military assistance from the Council of Piacenza in 1095 so that his kingdom might fight the Seljuk-led Turks. This was the first crusade initiative.
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The reasons why the United States provided loans for the Latin American countries after they gained independence from Spain were mostly of economic and political interests.
By providing loans to these newly formed nations, the United States tried to create a positive opinion by the people in these nations about them, as they would have thought that the United States are helping them to develop. The real reason why the loans were granted though was to make these nations economically dependent and connected with the United States, thus the United States to have big power over them. Also, because this is a region in the neighborhood of the United States, they wanted to make sure that they would have things under control, create good relations with these nations, and avoid any future problems.
Before the agricultural revolution much of England's farmland was "common" land, since there was far less competition in terms of the land being used for crop cultivation.
Rock composition and measuring the seismic waves provide knowledge for the scientists to study the interior of the earth.
Explanation:
When the crust gets distributed it is easy to study the layers of the different materials that got settled and compacted in the earth. Patterns that are formed in the rocks provides to be a good source to know about the earth's crust. rock cores are cylindrical sections which are cut and removed from the earth crust for research purposes.
It is impossible to drill to the center of the earth and so scientists rely on seismic waves and the speed of the seismic waves depends on the material on which it is passing through. The toughness and stiffness obstruct the speed of the waves which is a means for the scientists to undertake research on the substance which hampered the speed of the seismic waves. P-waves, or pressure waves, which go through both liquids and solids, and S-waves, or shear waves which go through solids but not liquids. This provides the best data to undertake research regarding the earth' crust by the scientists.
