Fill in the Blanks The Roman Empire in BritainOnline version This activity refers to the period where Romans invaded and governed Britain, by Geraldin Bornia 1 tribes Stone public army Britain hospitals ships Romans invaded around AD 43 . Their was very well organized . They used , soldiers and cavalry . The British used to living in houses on hill tops . Romans taught them how to build homes of on lower ground . Romans introduced áreas into the cities : public bath houses , and other fort buildings .