The history of England concerns the study of the human past in one of Europe's oldest and most influential national territories. What is now England, a country within the United Kingdom, was inhabited by early humans 800,000 years ago as the 2010 discovery of flint tools at Happisburgh in Norfolk revealed.[1] The earliest evidence for modern humans in North West Europe is a jawbone discovered in Devon at Kents Cavern in 1927, which was re-dated in 2011 to between 41,000 and 44,000 years old.[2] Continuous human habitation dates to around 12,000 years ago, at the end of the last glacial period. The region has numerous remains from the Mesolithic, Neolithic, and Bronze Age, such as Stonehenge and Avebury. In the Iron Age, England, like all of Britain south of the Firth of Forth, was inhabited by the Celtic people known as the Britons, but also by some Belgae tribes (e.g. the Atrebates, the Catuvellauni, the Trinovantes, etc.) in the south east. In AD 43 the Roman conquest of Britain began; the Romans maintained control of their province of Britannia through to the 5th century. The end of Roman rule in Britain enabled the Anglo-Saxon settlement of Britain, which is often regarded as the origin of England and the English people. The Anglo-Saxons, a collection of various Germanic peoples, established several kingdoms that became the primary powers in what is now England and parts of southern Scotland.[3] They introduced the Old English language, which displaced the previous British language. The Anglo-Saxons warred with British successor states in Wales, Cornwall, and the Hen Ogledd (Old North; the Brythonic-speaking parts of northern England and southern Scotland), as well as with each other. Raids by the Vikings were frequent after about AD 800, and the Norsemen took control of large parts of what is now England. During this period several rulers attempted to unite the various Anglo-Saxon kingdoms, an effort that led to the emergence of the Kingdom of England by the 10th century. In 1066, the Normans invaded and conquered England. There was much civil war and battles with other nations throughout the Middle Ages. The Kingdom of England was a sovereign state until the reign of Richard I who made it a vassal of the Holy Roman Empire in 1194. In 1212 during the reign of his brother John Lackland the Kingdom instead became a tribute-paying vassal of the Holy See [4][5] until the 16th century when Henry VIII broke from the Catholic Church. During the Renaissance, England was ruled by the Tudors. England had conquered Wales in the 12th century and was then united with Scotland in the early 18th century to form a new sovereign state called Great Britain.[6][7][8] Following the Industrial Revolution, Great Britain ruled a worldwide Empire, the largest in the world. Following a process of decolonization in the 20th century the vast majority of the empire became independent; however, its cultural impact is widespread and deep in many countries of the present day. Wiki.