il they would get very heavy rain; the river size would increase and flow north carrying very fertile soil known as silt. When the river overflows the silt is spread throughout the 60-mile radius of the Nile Flood Plain. Creating the 3rd most fertile soil in the world. Eventually the Nile Flood plain just wasn't large enough to feed the civilizations, so the Egyptians created irrigation systems, which were canals, domes levies, and dikes, that expanded the flood plain 40 miles in each direction. In order to get this irrigation system going the Egyptians had to master some key principals of science and math, including physics, engineering, and geometry. The spot is the deepest spot is the deepest spot in the channel of the river.
             Mesopotamia - Is known as the land between the two rivers. On the Turkey border there is the Zagros Mountains, which is a medium size mountain range between 1200-1400 ft. above sea level. The tops are covered in snow and ice. In May and June the tops begin to melt and the water meets up with the Tigris and Euphrates River. The Tigris River is about 90 miles long and deposits into the Persian Gulf, and the Euphrates River is about 110 miles long. The Tigris and Euphrates Rivers have a flood plain that is parallel to each other and is roughly 80 miles long. These environmental Bulls - eye is known as the "Plain of Shinar". Obvious enough Mesopotamia's environmental advantage is rich land do to the flooding of the Tigris, and Euphrates River. These two rivers produce the 6th and 7th most fertile soil.
             Palestine - Palestine's environmental advantage is Crossroads of Trade because it is located between Egypt and Mesopotamia, which are two centers of civilization. The Lydian's who are a migrating tribe in the Sahara and Arabian desserts. They came in on the coast of Turkey, which was a great location for crossroad trade; with this advantage at their fingertips they built city-states. While building ...