February - In the United Kingdom general election, 1874, newly elected MPs include David Davies (Llandinam) at Cardigan (returned unopposed).
15 July - Foundation stone laid for the clock tower at Machynlleth, built to mark the coming of age in 1873 of Viscount Castlereagh, the eldest son of the 5th Marquess of Londonderry of Plas Machynlleth.