Just because unicorns are mythical doesn’t mean they haven’t had a real impact on history. Just ask a narwhal! 1. The first known depiction of a unicorn—found in the Lascaux Caves of modern-day France—dates to around 15,000 BCE! Or so people thought, until they realized that the so-called Lascaux unicorn had two horns, drawn confusingly close together. 2. The earliest record of unicorns in Western literature belongs to Greek historian Ctesias. In the 5th century BCE, he wrote that the beast had a white body, purple head, blue eyes, and a multicolored horn—red at the tip, black in the middle, and white at the base. 3. In his travels, Marco Polo believed he stumbled across unicorns. He wrote, “They are very...