The most important innovations in the new charter reinforced the dual course of constitutional evolution, allowing for both regional autonomy and federal union. By extending the elective principle and by providing for a central government with a Council of Ministers, the Macpherson Constitution gave renewed impetus to party activity and to political participation at the national level. But by providing for comparable regional governments exercising broad legislative powers, which could not be overridden by the newly established 185-seat federal House of Representatives, the Macpherson Constitution also gave a significant boost to regionalism. Subsequent revisions contained in the Lyttleton Constitution, named for Oliver Lyttelton, 1st Viscount Chandos and enacted in 1954, firmly established the federal principle and paved the way for independence.