Category
page 1Quadrennial events
IMU Abacus Medal
mathematics award
World Scout Jamboree
recurring event
International Tchaikovsky Competition
classical music competition
Democratic National Convention
series of presidential nominating conventions held every four years since 1832 by the United States Democratic Party
World Scout Moot
scouting event held every 4 years

Blumenthal Award
Award of the American Mathematical Society
European Congress of Mathematics
Noether Lecture
mathematical award
Rome Quadriennale
museum in Italy
Drupa
Drupa (stylized drupa) is the largest printing equipment exhibition in the world, held every four years by Messe Düsseldorf in Düsseldorf, Germany. The word drupa is a portmanteau of the German words Druck und Papier ("print and paper").
Caccioppoli Prize
award
International Congress on Industrial and Applied Mathematics
international congress in the field of applied mathematics held every four years
World Congress of Soil Science
scientific conference
Bertsolari Txapelketa Nagusia
basque contest of improvised poetry