He was one of the founding fathers of the United States and the president of the Continental Congress, who signed the Declaration of Independence with a large and prominent signature, which became an idiomatic expression for a signature in the US.
He was a renowned Italian polymath and artist, who created many signature works of art, science, and engineering, such as the Mona Lisa, the Last Supper, the Vitruvian Man, and the helicopter.
He was a Nobel Prize-winning physicist and the father of modern physics, who developed the theory of relativity and the famous equation E = mc2, which are considered his signature contributions to science and humanity.
He was the greatest English playwright and poet, who wrote many signature works of literature, such as Hamlet, Romeo and Juliet, Macbeth, and Sonnets, which influenced the English language and culture.
He was a pioneer of animation and entertainment, who founded the Walt Disney Company and created many signature characters, such as Mickey Mouse, Snow White, Cinderella, and the Lion King, which became popular icons of culture and imagination.