The body of water that is between the main island or mass of Asia and Japan is the Korea Strait. However, other bodies of water may also be crossed. These include Sea of Japan (East Sea) or East China Sea really depending on the portion of mainland Asia someone is coming from to reach Japan.
The Savannah River is along the border of Georgia and South Carolina the river stretches as far as 301 miles long <span />
The common geographic factor for Egypt and the fertile crescent were the big rivers, they made big alluvial deposits on their shores each year and allowed the people to have sufficient amount of food production. That opened the gates for civilizations to flourish in this places.
