What was so unqiue about John Hancock's signature?

John Hancock's signature is unique primarily because of its bold and prominent style, which he famously placed on the Declaration of Independence. It has become a symbol of American independence and defiance against British rule. Hancock's signature is also notable for its size; he deliberately wrote it large so that King George III could read it without his glasses, showcasing his flair and confidence. This distinctiveness has made Hancock's name synonymous with the act of signing one's name.