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What Is a Roth IRA? A Roth IRA is a special retirement account that you fund with post-tax income (you can't deduct your contributions on your income taxes). Once you have done this, all future withdrawals that follow Roth IRA regulations are tax free
Europe. With their opium and ability to control the Suez canal. Opium war and such.
The correct answer to this open question is the following.
The geographic feature of Mesopotamia that led to the Sumerians being easily taken over was the Tigris and Euphrates Rivers that made it easy for their enemies to navigate and invade them.
Sumeria was the oldest civilization known to man. Sumerians settled in the middle of the Tigris and Euphrates Rivers in the Middle East region. There, they developed agriculture techniques and learn how to use the flood of the rivers to grow crops in that fertile soil. That is how they prosper for some time until their enemies could access their city-states navigating through both rivers.