Documentary reference to grazing rights at Hirwaun Common between the Monks of the Cistercian Abbey of Margam and the Monks of Llantarnam.
Document gives the boundaries of Hirwaun Common from the Boi Brook to Rhigos.
Hirwaun Iron Works opened by John Mayberry.
Ty Mawr Mansion built by Anthony Bacon.
Turnpike Road built from Glynneath via Hirwaun to Merthyr.
Hirwaun Iron Works bought by the Crawshay Family.
4 new blast furnaces built at the Iron Works. Two work schools opened by Francis Crawshay.
Nebo Chapel built on Merthyr Road. Bethel Chapel (old) built at Bethel Place.
Ramoth Chapel built on Trevenock Place.
The first raising of the red flag is believed to have taken place on Hirwaun Common as part of the Merthyr Rising which took place during May and June of this year.
Nebo Chapel enlarged. Bethel Chapel (old) rebuilt.
Ramoth Chapel rebuilt.
Francis Crawshay built his famous Tower. A folly which overlooked the village.
British School opened. Cholera epidemic in the village.
Hirwaun Rail Station opened as part of the development of the Vale of Neath railway from Swansea to Aberdare. Nebo Chapel rebuilt.
Brickworks opened by Allen and Younger.
Bethel Chapel (old) rebuilt.
St. Lleurwg’s Church opened.
Crawshay Family closed the Iron Works.
Mount Pleasant Chapel built on Harris Street.
Ramoth Chapel rebuilt.
Council School opened on Brecon Road.
English Wesleyan Chapel opened on Penyard Road.
Elizabeth Andrews – who became instrumental in the campaign for the introduction of pithead baths for Welsh collieries was born in Station Road.
Explosion at Tower (Bute) Colliery killing three men.
Nebo Chapel renovated. Mission Room Chapel built on High Street.
Gloucester Wagon and Carriage Works established.
Bethel Chapel (old) enlarged.
Hirwaun Iron Works finally closed.
Discovery of Bronze and Early Iron Age artefacts in Llyn Fawr. These items are now on display in the National Museum of Wales in Cardiff.
Visit of Kink George V and Queen Mary to the village during their tour of South Wales.
Bryn-y-Gaer cemetery opened.
Local branch of St. John’s Ambulance formed
Hirwaun War Memorial Clock Tower erected in honour of those members of the village who paid the ultimate sacrifice during the Great War. The names of those who died during the Second World War were later added. The monument is now a Grade II listed building.
Local children fed at Duffryn Hall during the General Strike of this year.
Miners’ Welfare recreational grounds opened.
Second World War – Evacuees arrived from London and Birmingham. Royal Ordnance Factory opened near the village in 1941 as part of the war effort. German bombs believed to be intended for this target were dropped on Brecon Road later that year.
Bethesda Chapel built on Hirwaun Road. Mission Room Chapel demolished.
The Tower and Beacons Flats built. Bethel Chapel (old) demolished. Bethesda Chapel demolished.
Explosion at Tower Colliery killed nine miners.
New Fire Station opened.
New Juniors School opened.
Battle to prevent LNG tanks being erected in the village successfully fought by local residents.
(New) Bethel Chapel built on site of old chapel.
Hirwaun Historical Society formed.
Tower Colliery closed by British Coal. Ramoth Chapel refurbished. Miners take ownership of Tower Colliery.
Village Hall opened.
The Tower and Beacons flats demolished.
Blue Plaque awarded to Ty Mawr Mansion to acknowledge the importance of the local Iron Works.