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Yes. Current theory postulates the formal agriculture in the Fertile cresent approximately 12,000~14,000 ya (about 12-10,000 BCE)150 centuries = 15,000 years.
Written historical records (Sumerian) are dated about 4,000 BCE. There is some speculation that the Vedic scriptures (based on certain linguistic archaeological theories) may be as old as 8-10,000 years (about 8-6,000 BCE)Oh, yes, sorry. Well, human civilization ain't that old! Less than 50 centuries, tops!
Not necessarily. There is a body of evidence that supports the notion of punctuated equilibrium (that any natural system is relatively homeostatic, but after a certain threshold is passed, change occurs quickly until the new equilibrium is established) occurred at the end of the last ice age, which means sea level rise happened quickly, meaning sea level could have rose as fast as 5 to 10 feet per year.The glaciers retreated, and the coasts flooded, naturally, which means slowly. Any coastal civilization would have had plenty of time to move uphill a bit, and almost certainly -- almost -- would have left some trace in the archaeological/historical record.
Also, keep in mind that infrastructure doesn't move easily. Especially the kinds of infrastructure that can withstand millennias. Stone structures last longest, but are the most difficult and labor intensive to build. Metals oxidize fairly quick. Plant materials do well to last a couple centuries.
Any significant sites would likely be underwater. Under sea water which is; A)highly corrosive, B) Tends to cover things with silts and sediment, and C) is teaming with organisms that tend to colonize new areas quickly.
This means that any really old structures would be very difficult to find (at best) and could be easily mistaken for natural formations.
So, how would you look for them? Sonar-mapping?
scientologists built the pyramids in Egypt
Tom Cruise was somehow involved