Thomas Edison invented the motion picture in the late 1800s. The early 1900s saw advances in filmmaking techniques by directors like D.W. Griffith. Griffith's 1915 film "The Birth of a Nation" was groundbreaking but also controversial for promoting racist ideologies. This contributed to the resurgence of the Ku Klux Klan. Around this time, African American filmmakers like Oscar Micheaux began producing films for black audiences that addressed issues of racism and discrimination.