Who are the colonizers of Britain?

The primary colonizers of Britain were the Romans, who invaded in 43 AD and established control over much of the island until the early 5th century. Following the Roman withdrawal, various groups, including the Anglo-Saxons, Vikings, and Normans, invaded and settled in Britain, significantly influencing its culture and society. Each of these groups brought their own languages, customs, and governance, shaping the historical development of Britain.