The Story of Citron
This variety has been grown for centuries and used to make preserves, pickles, and "sweetmeats."
It is possible that the watermelon originated in Africa and that it was cultivated in the Nile Valley as early as the 2nd millennium BCE and is mentioned in the Bible.
Later the watermelon was brought to India and China before being brought to Europe. It was brought to North America by European colonists and African slaves.