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'Gates of Change'
![Students walking in front of the Little Rock Central High School](/sites/default/files/styles/article_thumbnail_s_m_l_xl/public/2017-07/Teaching%20Tolerance_TT31_Gates%20of%20Change_1800px.jpg?itok=ogD8xhna)
In 1957, nine black schoolchildren enrolled at Central High School in Little Rock, Ark., and compelled the nation to live up to its promise of equality. Fifty years later, Central High's teachers and students revisit the past to help shape the future.