Hellenic Mathematical Society was created in 1918.
Hellenic Philotelic Society was created in 1925.
Society for the Promotion of Hellenic Studies was created in 1879.
Hellenic Society for Systemic Studies was created in 2003.
Polish Mathematical Society was created in 1917.
Luxembourg Mathematical Society was created in 1989.
Kharkov Mathematical Society was created in 1879.
Swiss Mathematical Society was created in 1910.
Portuguese Mathematical Society was created in 1940.
German Mathematical Society was created in 1890.
Calcutta Mathematical Society was created in 1908.
American Mathematical Society was created in 1888.
Australian Mathematical Society was created in 1956.