So, what happened was that those operas had a lot of commercials during the shows (for soup and detergent) directed at housewives that were thought to do the laundry during the show. The best answer is then this one:
<span> because they were targeted at housewives who did household chores</span>
<u>The Birth of a Nation was a film that triggered the revival of the Ku Klux Klan in the 1910s and 1920s. </u>Its original name was "the Clansman". It was released in 1915.
The film is set during the American Civil War and the Reconstruction Era, and tells the story of two families: one pro-Union and the other pro-Confederacy.
The film was a commercial success but it was also very polemic because of the manner in which black men were portrayed as unintelligent and sexually aggressive towards white women, and because it represented the Ku Klux Klan (KKK) as a heroic force. Such image presented, inspired the revival of the KKK.
