1. Hadrian's Wall - AD 120: Hadrian's Wall was built by Romans around the then England so as to keep the invaders away
2. Celtic invasion - 700 BC: the Celts invaded Britain and settled in some of its areas
3. means of change in early England - invasion: when various nations invaded a country, they usually brought significant changes
4. Roman invasion - 52 BC: this is when the Romans came to England
5. conquered by Rome - Britons: the nation who used to live in England at the time
