 They would be followed for other English and Scottish clubs that visited the region, contributing to the spread and develop of football in South America during the first years of the 20th century.After World War I, when many teams were broken up by the call of National Service, Saints joined the newly formed Football League Division 3 in 1920 which split into South and North sections a year later.The 1920–21 season ended in triumph with promotion and marked the beginning of a 31-year stay in Division 2.