Homework was considered hugely controversial in the late 1800’s and early 1900’s. Physicians crusaded against it because they were convinced it was causing children to become wan, weak and nervous. In 1901, California even banned homework for anyone under the age of 15. – WTF Fun Facts
Source: https://www.latimes.com/archives/la-xpm-2009-mar-22-me-homework22-story.html