Christianity
- In 313, Christianity was officially recognized in the Roman Empire.
- From then until the 15th century, the Christian world entered a dark age of medicine.
- People believed that illness was a punishment from God, and that the only way to cure disease was through prayer and repentance.
- Dissecting the sacred human body was considered contrary to the teachings of God, and even animal dissection was not permitted.
- Greek medicine was inherited and preserved by Arabic medicine.