Merlin wishes ( peace between muggle world and Wizardy world )

Merlin was a wizard so famous and so open about his magical abilities that he's famous within both the wizarding and Muggle communities, and a huge reason for that is because he intentionally revealed himself to Muggles in the hopes that the Wizarding and Muggle worlds could eventually become one. His grand ideas and impact on wizards led to the figure becoming immortalized on a Chocolate Frog Card.