Who am i? "not to brag, but i was only the third king in history to create an empire. i conquered states throughout mesopotamia, from the mediterranean sea to the black sea. unfortunately, empires as big as mine are hard to control. citizens ended up revolting and i was pushed out of power by the sumerians."
a. sargon the great b. akhenaton c. alexander the great d. akkad

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The person behind the facts stated in the question is Sargon the Great. He was the third king in history to create an empire, as he was the first ruler of the Semitic-speaking Akkadian Empire. He was famous for his conquests of the Sumerian city-states including Mesopotamia and parts of Iran, Turkey and Syria. Sargon was dethroned by the Sumerians as a result of a revolution.

radioactive dating, also known as  radioisotope dating  is a process that in  estimating the approximate  age  of  rocks. these data can be analyzed from  the studies dealing with the  decay of the radioactive elements that are present in these rocks. in nature, there are a few types of materials or atoms which are quite unstable and they spontaneously decay or breakdown to form other kinds of atoms.