Why was john hancock’s signature on the declaration important?

he was the president and leader of the congress.
he was the voice behind all movement for independence.
he was the one who had originally proposed independence.
he was the most prominent businessman in the colonies.

He was the president and leader of the Congress.

Explanation:

John Hancock the American revolution leader from 1737 to 1793 one of the famous founding fathers he was the first who signed the declaration of Independence in 1766 and he was the first Governor of Massachusetts.

John Hancock was elected as the President of the Congress, John Hancock is appreciated as the first person who signed on the declaration of Independence his long stylish signature also became famous.

new evidence is discovered.

oversights and errors are corrected,

new technology is applied to evidence.