When did the colonist find out they won the revolution?

The Battle of Yorktown was when America knew they had won the revolution. Cornwallis was surrounded by the American army and he sent a written surrender. After, the two armys met up for a physical surrender where the Britain army set down their weapons as a sign of surrender. It was rumored that after they gave their weapons up, the song "The World Turned Upside Down" was played.