The club was formed in 1903 as Trethomas Football Club. The pitch was bought by the miners who worked at the mine and coke works of Bedwas & Trethomas. The name Bluebirds came from one of the founders who was a Cardiff City supporter. The club entered the Gwent County League in 2003, winning promotion to Division Two as Champions in 2005–06. Promotion to Division One followed after the club finished as runners-up in the 2012–13 season.[1]