Sumer (in Mesopotamia) is one of the oldest known nation-states.
Earth's first animal was the ocean-drifting comb jelly, not the simple sponge, according to a new find that has shocked scientists who didn't imagine the earliest critter could be so complex. The mystery of the first animal denizen of the planet can only be inferred from fossils and by studying related animals today.
Electricity is a form of energy and it occurs in nature, so it was not “invented.” As to who discovered it, many misconceptions abound. Some give credit to Benjamin Franklin for discovering electricity, but his experiments only helped establish the connection between lightning and electricity, nothing more.
Charles Babbage KH FRS was an English polymath. A mathematician, philosopher, inventor and mechanical engineer, Babbage originated the concept of a digital programmable computer.
Chester Floyd Carlson was an American physicist, inventor, and patent attorney born in Seattle, Washington.
Donald John Trump is the 45th and current President of the United States, in office since January 20, 2017. Before entering politics, he was a businessman and television personality.