The ancient form of cheesecake may have been a popular dessert in Greece, even before its conquest by the Romans. The earliest mention of cheesecake comes from the Greek physician Aegimus, who lived in the fifth century BC and was one of the oldest Greek physicians, the person who wrote a treatise on the pulse. He also wrote a book on the art of cheesecake making (πλακουντοποιικόν σύγγραμμα - plakountopoiikon sungramma).