Dee ihe na-aga n'ihu maka paragraf a - A na-ekwu na iwu ya gbochiri nnukwu ọgba aghara na Philadelphia n'oge ọkọchị nke afọ 1967, ebe obodo ndị nwere ọnụ ọgụgụ yiri nke ndị isi ojii America, dị ka Detroit na Newark
, nwere mmetụta. N'afọ sochirinụ, Chicago, Baltimore, na Washington, D.C. niile nwere ọgba aghara dị ukwuu n'April 1968 mgbe e gbusịrị Martin Luther King, Jr., na nyocha nke oge a site n'aka Drew Pearson nyere otuto nye "otu n'ime ndị uwe ojii kachasị ike na USA", Kọmishọna Frank Rizzo, na ndị uwe ojii ya "jikọtara nke ọma" maka igbochi ọgba aghara yiri nke ahụ na Philadelphia.