Quote from : The Etymologicon: A Circular Stroll through the Hidden Connections of the English Language Book

But Shakespeare never drank coffee. Nor did Julius Caesar, or Socrates. Alexander the Great conquered half the world without even a café latte to perk him up. The pyramids were designed and constructed without a whiff of a sniff of caffeine. Coffee was introduced to Europe only in 1615. The achievements of antiquity are quite enough to cow the modern human, but when you realize that they did it all without caffeine it becomes almost unbearable.