...Today, case you didn't noticed is the world amateur radio day, the date matches the foundation of IARU.
"...Created in Paris, France, the International Amateur Radio Union has been the watchdog and spokesman for the world Amateur Radio community since 1925. The IARU Constitution, last amended in 1989, organizes the Union into three Regional Organizations that correspond to the three radio regions of the International Telecommunication Union (ITU). The IARU Constitution also provides for an IARU Member Society to serve as the Union's International Secretariat...."
Member societies at: http://www.iaru.org/iaru-soc.html
Some member societies:
REP (Portugal) - Founded 1926
ARRL (USA) - Founded 1914
RSGB (UK) - Founded 1913
73 de Ricardo - CT2GQV