[2] With the intention of creating better a framework for the arrangements of private matches, BK Fremad Amager took the initiative of inviting all present clubs on the island of Amager to a first briefing in November 1911 – with the exception of B 1908 due to the club being considered a much stronger side than the Amager-based teams.
[3] The representatives went back to their individual clubs to discuss the formation of a local football association, which resulted in a new meeting in January 1912, in which B 1908 was now invited to.
[8] The formation of Amager Boldspil-Union happened in the wake of KBU's conflicts in 1911 regarding the constellation of power and the number of votes between the baneejende klubber and the fælledklubberne.
Senior-Hold) each split into a spring and fall section with a silver trophy as the perpetual prize, including a cup tournament held at the end of the season.
[2] By mid-June 1912, Sundby KFUM and Kastrup BK (exited between 1908 and 1927) had joined the association and would soon take part in the tournament matches played on Sundays.
[2][1] In 1915, Amager Boldspil Union asked if BK Standard wanted to become a member in 1915, which the club did in 1916, beginning play in the 1916–17 reserve league season.
[4] On 1 October 1916, the Amager FA published its first edition of their member's magazine with Emanuel Johansen (BK Sylvia) as the editor-in-chief, named Unionsbladet, containing articles, related cases and discussions, historical information, match reviews and statistics.
[7] Throughout the association's first eight years, they had several fruitless negotiations with different civilian and military authorities to have the conditions of their playing grounds improved, which caused the dissolution of at least two clubs in 1920.
In the debut season for the association's league tournaments, B 1908 wins the competitions aimed at seniors 1 and 2 including youth (junior).
[3] In 1916, the first team and the reserve squad of B 1908 won their respective league tournaments, acquiring the perpetual trophy as the club's permanent procession.