URL: https://www.thoughtco.com/thmb/7HWLto1104TF8scj0ll3yRegxR8=/650x0/filters:no_upscale():max_bytes(150000):strip_icc()/GettyImages-57172813-586e2cfd3df78c17b6dc8c7a.jpg
URL2: https://www.greelane.com/ja/文系/歴史と文化/african-american-history-timeline-1980-1989-45446/
