The first municipal bankruptcy legislation was enacted in 1934 during the Great Depression. Although Congress attempted to draft the legislation so as not to interfere with the sovereign powers of the states guaranteed by the Tenth Amendment to the Constitution, the Supreme Court held the 1934 Act unconstitutional as an improper interference with the sovereignty of the states. Congress enacted a revised Municipal Bankruptcy Act in 1937, which was upheld by the Supreme Court. The law has been amended several times since 1937.