When did the formal study of pills start off? When did practicing tablets require a lisence?
Answer:
Hippocrates lectured underneath a sycamore tree on the island of Cos in the Aegean Sea. Both formerly and after that, students apprenticed themselves to a medical practitioner, who then give them a certificate acknowledge their service.
In the western world, the University of Bologna is among the oldest, beginning surrounded by the 11th century. By the 14th century its medical faculty was ingrained.
Medical education surrounded by the US was a hit or miss affair until the Flexner Report contained by 1910, sponsored by the Carnegie Foundation. While there be a few excellent medical schools, here were plentiful more inferior ones. It had abundant ramifications including the closure of masses proprietary (non-university affiliated) medical schools, and lead state licensing boards to form their standards more rigid.
I assume the requirement of a license varied from country to country and state to state. The purpose of state licensures is to ascertain that the applicant have satisfactorily completed his or her teaching in a good enough manner and is expected to stick to ethical standards and the laws of the exceptional state. Application and renewal are time-consuming processess, mainly because wrong and fraudulent practitioners are becoming more sophisticated.
Formal study? I'm not sure the precise time but I do know that the ancient Greeks "studied" medicine as a specific profession, to some extent than it being a side profession or something that be just picked up. Someone wish to become a doctor in ancient Greece would enjoy had to approach someone who be already a physician, or normally their father would do it, and they'd be given an apprenticeship. Granted it's not "formal" within a classroom sense, but the student did study with a practicing physician during the physician's rounds near his patients (that's where the practice of internships comes from I believe). Before the Greeks, and probably after contained by various places after the Greeks, anyone could claim to be a doctor next to no training what-so-ever.
Licensing would probably be a later count to the profession. I'd guess somewhere between 1600 and 1800, though I haven't got a clue when exactly.
Good luck!