The empire known for its vast network of roads and the spread of Christianity was the Roman Empire. With its extensive road system, facilitating trade and military movement, the Romans connected various regions across Europe, North Africa, and the Middle East. This infrastructure not only supported economic expansion but also aided in the dissemination of new ideas, including Christianity. Initially persecuted, Christianity gained official recognition and eventually became the state religion under Emperor Constantine in the early 4th century. The Roman Empire's patronage played a crucial role in shaping early Christian history, doctrine, and organization.