Although known for millennia by many of the peoples of Africa and Asia, elephants’ introduction to the classical West came around 331 B.C., when Alexander the Great encountered war elephants as his army swept from Persia into India. At the river Jhelum, in present-day Pakistan, Alexander defeated the Indian ruler Porus, who was said to have 100,000 war elephants in his army. Ever since, whether revered as a divine symbol of luck and wisdom, used as unique tools of diplomacy between leaders, deployed to intimidate opposing armies or put on display in the service of status or science, elephants have loomed large in the historical record. Check out 10 notable examples.