Simplify the following text for a Grade 9 native English-speaking person.
Original: The Royal College of Physicians of London was founded in 1518 as the College of Physicians ( it acquired the `` Royal '' prefix in 1674 ) by royal charter of King Henry VIII in 1518 - the first medical institution in England to receive a royal charter .
Simplified: It was originally created as the College of Physicians by royal charter of King Henry VIII in 1518 .