 Complete the following phrase:  In 1920, in order to expand, the Football League absorbed the teams from the First Division of the Southern League. Swansea were placed into the newly created Football League Third Division but Cardiff were granted a place in the Football League Second Division after winning an election vote. The split resulted in the two sides facing each other only three times between 1920 and 1929, all of which came in the Welsh Cup. Cardiff enjoyed one of the most successful periods in the clubs history during the 1920s, winning the 1927 FA Cup Final and finishing as runners-up in both the 