Are all the participants in the International Mathematical Olympiad in the United States today Jews and Indians?
That's not true. Participants in the International Mathematical Olympiad (IMO) come from all over the world, not just Jews and Indians. IMO is an international competition organized by the International Mathematical Union (IMO), aiming at encouraging and promoting young people's interest in mathematics and developing their skills. Players usually come from various countries and regions, including schools in Europe, Asia, Africa, South America and North America.