 During the 367 years of Roman occupation of Britain, the majority of settlers were soldiers garrisoned on the mainland.It was with constant contact with Rome and the rest of Romanised Europe through trade and industry that the elite native Britons themselves adopted Roman culture and customs, though the majority in the countryside were little affected.The capital city of Londonium was an ethnically diverse city with inhabitants from across the Roman Empire, including natives of Britannia, continental Europe, the Middle East, and North Africa.