The Spanish government on Thursday returned seven paintings to the descendants of an ex-Madrid mayor who lost them fleeing Francisco Franco's uprising as the country grapples with the dictator's ...

This civilization thrived in Peru’s Supe Valley between 3000 and 1800 BCE. It’s often called the earliest known society in the Americas, predating even the Maya and Inca. The Carals built ...

While solutions for two-degree polynomials have existed since the ancient Babylonians discovered them in 1800 BCE, the equation and its limits were not discovered until 1832 by French mathematician ...