Not exactly but…
After 1991 many Russian mathematicians and physicists who had themselves studied as children in famous specialist maths schools and Circles left the former Soviet Union for the west. And all the best western universities have a fraction of academics who went through the Russian tradition of Circles and specialist maths schools. (Britain’s biggest taxpayer and funder of secondary Circles, Alex Gerko, went to the famous Moscow School 57.)
Some of the most famous and useful books, and accounts by teachers and children, therefore come from Russia but the ideas have developed in many countries. Circle-style teaching used to be more common across the west before governments took control of curricula and exams.