The Constitution of Ireland has been amended 32 times since its adoption in 1937. Numerous other amendment bills have been introduced in Dáil Éireann but were not enacted.[1] These include government bills passed by the Dáil and Seanad but rejected at referendum; bills which the government introduced but later decided not to proceed with; and the rest were private member's bills (PMBs), usually introduced by opposition TDs. No amendment PMBs passed second stage until 2015.[2]