https://www.btstories.com/Daniels-decision/

Nebuchadnezzar was king of Babylon. He conquered Jerusalem and took the people captive. He then ordered his officials to select the best young men and train them to serve in the royal court. They were to be given the best instruction in language, literature, and wisdom. This training would last three years, and during that time, the king would provide them the best food and wine.