when did great britain change to united kingdom
History of the United Kingdom A further Act of Union in 1800 added the Kingdom of Ireland to create the United Kingdom of Great Britain and Ireland.
British Empire Between 1815 and 1914, a period referred to as Britain's "imperial century" by some historians,[98][99] around 10,000,000 square miles (26,000,000Â km2) of territory and roughly 400 million people were added to the British Empire.[100] Victory over Napoleon left Britain without any serious international rival, other than Russia in Central Asia.[101] Unchallenged at sea, Britain adopted the role of global policeman, a state of affairs later known as the Pax Britannica,[9] and a foreign policy of "splendid isolation".[102] Alongside the formal control it exerted over its own colonies, Britain's dominant position in world trade meant that it effectively controlled the economies of many countries, such as China, Argentina and Siam, which has been described by some historians as an "Informal Empire".[103][104]
United Kingdom of Great Britain and Ireland The United Kingdom of Great Britain and Ireland was established as a sovereign state on 1 January 1801 by the Acts of Union 1800, which merged the kingdoms of Great Britain and Ireland. The growing desire for an Irish Republic led to the Irish War of Independence, which resulted in Ireland seceding from the Union and forming the Irish Free State in 1922. Northern Ireland remained part of the United Kingdom, and the state was consequently renamed the "United Kingdom of Great Britain and Northern Ireland".
Great Britain After the Anglo-Saxon period, Britain was used as a historical term only. Geoffrey of Monmouth in his pseudohistorical Historia Regum Britanniae (c.Â 1136) refers to the island as Britannia major ("Greater Britain"), to distinguish it from Britannia minor ("Lesser Britain"), the continental region which approximates to modern Brittany, which had been settled in the fifth and sixth centuries by migrants from Britain.[23] The term Great Britain was first used officially in 1474, in the instrument drawing up the proposal for a marriage between Cecily the daughter of Edward IV of England, and James the son of James III of Scotland, which described it as "this Nobill Isle, callit Gret Britanee". It was used again in 1604, when King James VI and I styled himself "King of Great Brittaine, France and Ireland".
England Under the newly formed Kingdom of Great Britain, output from the Royal Society and other English initiatives combined with the Scottish Enlightenment to create innovations in science and engineering, while the enormous growth in British overseas trade protected by the Royal Navy paved the way for the establishment of the British Empire. Domestically it drove the Industrial Revolution, a period of profound change in the socioeconomic and cultural conditions of England, resulting in industrialised agriculture, manufacture, engineering and mining, as well as new and pioneering road, rail and water networks to facilitate their expansion and development.[73] The opening of Northwest England's Bridgewater Canal in 1761 ushered in the canal age in Britain.[74][75] In 1825 the world's first permanent steam locomotive-hauled passenger railway—the Stockton and Darlington Railway—opened to the public.[74]
East India Company The company received a Royal Charter from Queen Elizabeth I