1903
Football’s first major tragedy occured at a Scotland-England international at Ibrox, Glasgow. After just ten minutes part of the West Stand collapsed, killing 25 people and seriously injuring 190. Play was resumed after an hour, the score 1-1, but was later declared unofficial and the score deleted from international records. Soon after, FIFA was formed, with the aims of controlling the game better on an international basis, using the same rules in all countries. Twice in history has the UK ceased membership of FIFA: first after World War One, when, along with France, Luxembourg and Belgium, they refused to be associated with Austria, Germany and Hungary. They returned in 1924, only to quit again four years later after a disagreement over the definition of amateurism. They rejoined in 1946.

1904
In a second round Cup tie in February 1904, Aston Villa were beating Tottenham 1-0 when a crowd pitch invasion caused the game to be abandoned and replayed at Villa Park, where Tottenham won 1-0. they were, however, fined £350 for the pitch invasion incident.
Woolwich Arsenal recorded the biggest win by a League team over a continental side when they beat a Parisian XI 26-1

1905
The first four figure transfer fee was paid, when Middlesbrough paid Sunderland £1,000 for Alf Common

1906
In 1906 the first Polish club was formed in Cracow, while in Brazil, the first League was formed.

1907
The Finnish FA began in 1907, going on to have some success in the Olympics, but their first meeting with England resulted in an 8-0 thrashing.
A meeting of the FA was called by several amateur clubs who felt that they were no longer receiving proper consideration compared to the professional clubs. The Amateur FA was subsequently formed, which split with the FA until 1914, and then changed their name to the Amateur Football Alliance in 1934.