Who invented the equals symbol?

More Questions:

What early arcade game used a trackball rather than a joystick?

What year marked the premier of Bizet's opera "Carmen"?

Which items are melting in Salvador Dali's painting "The Persistence of Memory"?

Who competed against Athena to be the patron god of Athens?

What large African island nation is located just west of Mauritius?

'Lost City of the Incas" is another name for what Peruvian site?

What plant is opium derived from?

Which famous rapper was born Stanley Kirk Burrel in 1962?

Baroness, Duke, Storm Shadow, and Snake Eyes were characters from which 1980's cartoon?

What singer's manager for over two decades was Colonel Tom Parker?

In 1947, US telephone companies began using what?

Which US president lived in Rancho del Cielo?

Before he escaped and returned to France, Napoleon had been exiled to what island in 1814?

Comic book writer and artist Jack Kirby, was given what name at birth?

What year did the interval act "Riverdance" debut at the Eurovision Song Contest?