1. Law and government: The Romans introduced a system of law and government that was based on the Roman model. This included a system of courts, a civil service, and a system of taxation.
2. Infrastructure: The Romans built many roads, bridges, and aqueducts throughout Britain. These infrastructure projects made it easier for people and goods to travel and trade.
3. Culture and religion: The Romans brought their culture and religion to Britain. This included the introduction of Christianity, as well as Roman art, literature, and music.