A bulldog is a dog with short hair, a short neck and large head, and short thick legs. It's well-known for its strong, determined character.

"If at first you don't succeed, try, try again." This is a well-known saying both in the US and the UK. It first appeared in an American schoolbook in 1840, and was intended to encourage children to do their homework.

The Founding Fathers were the political leaders who wrote the US Constitution in 1787.