Khan was the founder of the Mongol Empire, the largest land-based empire the world has ... Boadicea or Boudica was the wife of the leader of the Celtic Iceni tribe, Prasutagus. She famously won a ...

A few centuries later, Julius Caesar was the first Roman leader to have his portrait on a coin while he was still alive, one denarius minted just days before his murder in 44 B.C., the museum said.

The Roman emperor Nero is known as one of history’s most brutal and eccentric leaders. He is said to have killed his mother, stepbrother and wives, persecuted Christians and squandered a fortune ...