Hellenic Mathematical Society was created in 1918.
Hellenic Philotelic Society was created in 1925.
Hellenic Society for Systemic Studies was created in 2003.
Society for the Promotion of Hellenic Studies was created in 1879.
Mathematical Society of Japan was created in 1877.
Portuguese Mathematical Society was created in 1940.
Swiss Mathematical Society was created in 1910.
Kharkov Mathematical Society was created in 1879.
Edinburgh Mathematical Society was created in 1883.
European Mathematical Society was created in 1990.
Norwegian Mathematical Society was created in 1918.
Danish Mathematical Society was created in 1873.
German Mathematical Society was created in 1890.