International Mathematical Olympiad The International Mathematical Olympiad (IMO) is the World Championship Mathematics Competition for High School students and is held annually in a different country. The first IMO was held in 1959 in Romania, with 7 countries participating. It has gradually expanded to over 80 countries from 5 continents. The IMO Advisory Board ensures that the competition ...

July 10th-July 21st, 1998 Taipei, Taiwan, R.O.C. ...