In 1916, the National Institution for Moral Instruction had a contest to see who could come up with the best morality code. For kids. Evolving views on childhood, child labor laws, patriotism, and eugenics influenced this effort.
Research:

Behind the Scenes Minis: Paddles and The British Museum
31:02

Ashurbanipal
37:29

Six Impossible Episodes: Back-to-Court
41:15