Consider the following statements about African Union:
1. Organisation of the African Unity (OAU) came into being in 1963.
2. Organisation of African Unity (OAU) has 53 member countries.
3. African Union (AU), on the lines of EU, is a pet project of Libyan leader Muammar Gaddafi.
4. In 2002, the new name African Union was adopted.
Which of the statements given above are correct?