Outline of the History of the British Isles

The following outline is provided as an overview of and topical guide to the history of the British Isles:
History of the British Isles – history of the European island group known as the British Isles.
Political entities.
Throughout history, various political entities have inhabited the British Isles, with varying degrees of power and independence over one another.
Existing political entities.
The British Isles also includes three Crown dependencies of the United Kingdom.
Former political entities.
The following political entities all at one time existed within the British Isles.
Anglo-Saxon kingdoms.
Anglo-Saxons inhabited England from the 5th Century, and formed their own kingdoms.
Irish kingdoms.
Prior to the Norman invasion of Ireland many Irish Kingdoms existed. Some of the larger ones were:
Kingdoms in Scotland.
The following kingdoms all existed in what is now recognised as Scotland:
Welsh kingdoms.
During the medieval era several kingdoms existed in Wales.
Modern period.
During the modern period the following entities have all existed, but no longer do so.
Time periods.
Classical period.
The history of the British Isles in the classical era was characterised by the attempts of the Roman Empire to conquer the islands.
Major events.
Throughout history, there have been several events that had a lasting impact on the British Isles as a whole.
Conflicts.
Conflicts within the British Isles.
Historically, there have been many conflicts between the people inhabiting the British Isles which led to a lasting impact on the history of the islands.
Invasions from outside the British Isles.
There have been several invasions of the British Isles by outside entities, some of which had a lasting impact on the history of the islands.
Political events.
The following events had a lasting impact on the political shape of the British Isles.
Timeline.
The following is a timeline showing the major nations within the British Isles, or which controlled parts of the islands, over time.