In the early years of organised football, clubs in the Football League were almost exclusively from northern England and the Midlands, while clubs from southern England played in the Southern Football League. The increased importance of the Southern League was reflected when a fixture was played between the Scottish League and the Southern League for the first time, at Millwall in October 1910. The Southern League won both that fixture and a match against The Football League in the same year. These matches continued until the First World War, after which the Southern League was absorbed into the Football League. Frederick Wall, the secretary of the Football Association, wrote to the SFL in 1913 objecting to the use of the term "international" in describing matches between the Scottish League and the Football League. The SFL defended their right to use the term in Scottish advertising of the fixture.