Universal Copyright Convention
The United States initially refused to become a party to the Convention, since that would have required major changes in its copyright law, particularly with regard to moral rights, removal of the general requirement for registration of copyright works and elimination of mandatory copyright notice. This led first to the U.S. ratifying the Buenos Aires Convention (BAC) in 1910, and later the Universal Copyright Convention (UCC) in 1952 to accommodate the wishes of other countries.