krisanapong detraphiphat / Getty Images In the financial world, the Black-Scholes and the binomial option valuation models are two of the most important concepts in modern financial theory.

ROCKLIN, Calif. — In the middle of a suburban neighborhood in Rocklin, an unexpected sight stands out: a towering pyramid tucked away on the grounds of a golf course. The structure, an eerie ...

These striking puppets suggest that Indigenous people in what is now El Salvador had rituals that were more connected to the rest of Central American culture than previously thought.

This was a kiln-er find. Puppets with remarkable facial features believed to date back some 2,400 years have been discovered at the top of an ancient pyramid in the jungle of El Salvador.

However, for centuries, historians and archaeologists have been unable to decipher exactly how these pyramids were built. This gap in knowledge has led pyramid conspiracy theories to proliferate.