In this Saturday June 29, 2013 file photo, children squat to have their photograph taken by their parents next to paintings of President Barack Obama, center, and former South African President Nelson Mandela, left, outside the Mediclinic Heart Hospital where Nelson Mandela is being treated in Pretoria, South Africa. Barack Obama, the United States' first African-American president, has captured the imagination of people across the continent where his face shows up on billboards, backpacks, T-shirts and restaurants. On Friday, July 24, 2015 Obama will be visiting Kenya, where his father was born, for a summit on entrepreneurship before heading to Ethiopia to address leaders at the African Union headquarters. Wherever he goes, large crowds are expected to gather and cheer him. (AP Photo/Ben Curtis, file)
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