What period in History did Noah live? How does that story compare to the "Great Flood" in the Epic of Gilgamesh for Mesopotamian literature?"

According to Biblical Chronology, the Flood occurred in approximately 2348 B.C. in the 600th year of Noah's life. (Genesis 7:11).

Gilgamesh, as a historical figure, was a king of Sumer, city of Erech, second of cities founded by Nimrod. (Genesis 10:10,11).He was "immortalized" in the Gilgamesh Epic, which contains one of the many Flood accounts found among many peoples. It is a great proof that all people existing today descended from Noah, as these ancient peoples carried the story with them as they spread out from a central place over all the earth.

These ancient traditions are not the inspired Word of God, but have many similarities: a universal flood, a few people saved in a boat, others destroyed because of sin. The Bible contains the only accurate account of this great event. (II Timothy 3:16; Hebrews 1:1; II Peter 1:21).

I would suggest going to a library to look this up in a Zondervan's Pictorial Encyclopedia of the Bible. It is a 5-volume set and contains much fine information on this subject. It gives the exact comparison you are looking for and which space prevents me from discussing here.

Thank God for His inerrant word and record concerning Christ’s payment for our sins. John 3:16 states it so simply, "For God so loved the world, that he gave his only begotten Son, that whosoever believeth in him should not perish, but have everlasting life." I John 5:11 agrees, "And this is the record, that God hath given to us eternal life, and this life is in his Son."