and also shows you what to do to prevent other people from doing the same so that you get a monopoly.
Disney didn't mind paying for the rights if they wanted to use material still under copyright, like they did for Bambi or Dumbo or many others.
I was curious so I researched some more. The story of the founding of the Mali Empire is often told through the epic of Sundiata - born frail and unable to walk, Sundiata faced scorn from his half-brothers in the Mandinka kingdom. Guided by a prophetic destiny, Sundiata and his mother were exiled after the death of his father. During his exile, Sundiata transformed into a formidable leader, forming alliances and gathering supporters. He returned to the kingdom, defeated the oppressive forces and established the Mali Empire
The same applies to the King James Bible where the UK Crown (and Cambridge Press) hold the copyright to it, where you can't publish that text without permission.