Although it is not known exactly who invented the multiplication table, scientists do know that ancient Babylonians used multiplication tables as early as around 1800 B.C. The oldest multiplication table using base 10 wa... More »

As of August 2015, printable multiplication tables are online at Math Is Fun and Math Worksheets 4 Kids. Math Is Fun has links to both black and white and color times tables for 1 to 10 and for 1 to 12. Exercise book siz... More »

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To create multiplication table flash cards, write an equation on one side of a note card and the answer on the other side of the card. Repeat this with every equation in the multiplication table. Alternatively, write an ... More »

It is believed that the Sumerians invented the arch somewhere around 6000 B.C. The Romans, however, receive much of the credit for perfecting the design. More »

The first robot was a mechanical bird made in 350 B.C. by Archytas of Tarentum. It was called "The Pigeon" and was powered by steam. More »

Although paper was first invented in China during the second century B.C., it was not used for personal toilet necessities until the sixth century in medieval China. Joseph Gayetty is typically credited with inventing mo... More »

StyleList claims that Egyptians invented the first version of the flip-flop sandal around 4000 B.C. The oldest existing pair of flip-flops is on display at the British Museum. More »