Construction of the Seven Sisters Colliery, South Wales, begins; located on one of the richest coal sources in Britain.
Seven Sisters (Welsh: Blaendulais: source of the (river) Dulais) is a village and community in the Dulais Valley, Wales, UK. It lies 10 miles (16 km) north-east of Neath. Seven Sisters falls within the Seven Sisters ward of Neath Port Talbot county borough.