In 1920 a period of considerable Japanese immigration into Argentina began, with its peak in 1936 before World War II. Even before this date, more-or-less regular gatherings of Japanese people were organized at private houses. By 1918 a room was hired to serve as the seat of the nascent Association, opposite today's Central Post Office. In 1922 the AJR affiliated with the Japanese Association of Argentina. The seat of the AJR was moved then in 1933, 1938 and 1940. In 1940 World War II forced the AJR to dissolve.