September 15 marks the beginning of National Hispanic Heritage Month—a time to celebrate the rich cultures and recognize the contributions of Hispanic Americans. September 15 is the anniversary of independence for Latin American countries Costa Rica, El Salvador, Guatemala, Honduras, and Nicaragua. Mexico and Chile celebrate their independence days on September 16 and 18, respectively.
Originally, President Lyndon Johnson observed Hispanic Heritage Week in 1968. Twenty years later, the celebration became a month, September 15 – October 15, under President Ronald Reagan.