The natural barriers around the Fertile Crescent are the deserts and the mountains.
The people that migrated in the Fertile Crescent, in what is known as Mesopotamia, moved in there because it was the only place that had nice conditions for living and prosper. The Mesopotamia region was between two very big rivers, the Tigris and Euphrates rivers. These two rivers were flooding each year and creating a new very fertile soil, which allowed the people to be engaged in agriculture and have a stable food source, and also to have a stable fresh water source.
On the other hand, the deserts and the mountains, were not providing these condition. The deserts are too dry, there's not enough food and water, and life is extremely hard and has to be in a nomadic style. The mountains are very restrictive in what they offer and in how big of a part of the year. While the summers might be good and provide nice living conditions, the winters are very cruel and can bring death very easily.
Answer:
the answer is 2. the first crusade
Explanation:
it was between 1096 – 1099
Answer:
Se conoce como período de entreguerras o interbellum al periodo histórico del siglo XX que va de 1918 a 1939. Cronológicamente, se puede establecer desde el final de la Primera Guerra Mundial el 11 de noviembre de 1918 y el inicio de la Segunda Guerra Mundial el 1 de septiembre de 1939.
A pesar de la relativa brevedad del periodo, éste representó una época de cambios significativos en todo el mundo. La producción de energía basada en el petróleo y la mecanización asociada se expandieron de forma espectacular, dando lugar a los locos años veinte, un periodo de prosperidad y crecimiento económico para la clase media de Norteamérica, Europa, Asia y muchas otras partes del mundo. Los automóviles, el alumbrado eléctrico y las emisiones de radio, entre otras cosas, se convirtieron en algo habitual entre las poblaciones del mundo desarrollado. Las indulgencias de la época fueron seguidas posteriormente por la Gran Depresión, una recesión económica mundial sin precedentes que perjudicó gravemente a muchas de las mayores economías del mundo.
Explanation:
The name for this idea is "Domino Effect" - this is a theory that says that if one country falls to Communism the neighboring countries would also fall to Communism, much like pieces of Dominos fall when a neighboring piece fell.
This theory was important in the Foreign politics of the US during the cold war.