1. The Velvet Revolution in Czechoslovakia in 1989, which led to the peaceful transition from communism to democracy.
2. The Prague Spring in 1968, when Czechoslovakia attempted to implement political reforms but was invaded by Soviet forces.
3. The Battle of White Mountain in 1620, which marked the beginning of the Habsburg rule over Bohemia and the suppression of Protestantism in the region.
Kanada
Tři historické události spojené s Kanadou jsou založení Dominionu Kanady v roce 1867, přijetí kanadské vlajky v roce 1965 a podepsání dohody o volném obchodu mezi Kanadou a USA v roce 1988.