John D. Hancock was an American statesman and a prominent figure in the American Revolution. He is best known for his bold signature on the Declaration of Independence, which he signed as the President of the Second Continental Congress in 1776. His large and distinctive signature has become a symbol of American independence and defiance against British rule. The term "Hancock" has since become synonymous with a signature, often used in phrases like "put your John Hancock here." This association highlights the importance of his signature in American history, representing not just his name but also the collective commitment of the thirteen colonies to freedom from British governance.