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Plano Sister Cities Hsinchu City, Taiwan Map San Pedro Garza Garcia, Mexico Map Brampton, Ontario, Canada Map Event Photos San Pedro Garza Garcia Delegation Visits Plano Plano Delegation Visits Hsinchu City, Taiwan What Are Sister Cities? Sister Cities are official relationships that link cities with mutual interests from around the world. They are established through formal commitments by the respective municipal governments. Plano's sister city relationships are created by City Council resolution, requiring the approval of the Mayor and City Council. The sister cities concept was launched in 1956 when President Dwight D. Eisenhower proposed linking American cities with cities in other countries to exchange people, ideas and cultures. President Eisenhower’s goal was to involve individuals at all levels of U.S. society in personal diplomacy in the hope that these people-to-people relations would lessen the chance of future world conflicts. If you would like to learn more about Sister Cities, please visit Sister Cities International .