The League's greatest extent was from 28 September 1934 (when Ecuador joined) to 23 February 1935 (when Paraguay withdrew) with 58 members. At this time, only Costa Rica (22 January 1925), Brazil (14 June 1926), Japan (27 March 1933) and Germany (19 October 1933) had withdrawn, and only Egypt was left to join (on 26 May 1937).