The United Kingdom of Great Britain and Northern Ireland, commonly known as the United Kingdom (UK) or Britain, is a country in Northwestern Europe, off the coast of the continental mainland. It comprises England, Scotland, Wales and Northern Ireland, with a population of over 69 million in 2025. The UK includes the island of Great Britain, the north-eastern part of the island of Ireland, and most of the smaller islands within the British Isles, covering 94,354 square miles (244,376 km2). It shares a land border with the Republic of Ireland and is surrounded by the Atlantic Ocean, the North Sea, the English Channel, the Celtic Sea and the Irish Sea, while maintaining sovereignty over the Crown Dependencies and the British Overseas Territories. The capital and largest city of England and the UK is London; Edinburgh, Cardiff and Belfast are the national capitals of Scotland, Wales and Northern Ireland, respectively.
The British Isles have been continuously inhabited since the Neolithic. In AD 43 the Roman conquest of Britain began. The Roman departure between 383 and 410 was followed by Anglo-Saxon settlement beginning around 450. In 1066 the Normans conquered England. Over the 17th century the role of the British monarchy was reduced, particularly as a result of the English Civil War. In 1707 the Kingdom of England and the Kingdom of Scotland united under the Treaty of Union to create the Kingdom of Great Britain. The Acts of Union 1800 incorporated the Kingdom of Ireland to create the United Kingdom of Great Britain and Ireland in 1801. Most of Ireland seceded from the UK in 1922 as the Irish Free State, and the Royal and Parliamentary Titles Act 1927 created the present United Kingdom.
The UK became the first industrialised country and was the world's foremost power for the majority of the 19th and early 20th centuries, particularly during the Pax Britannica between 1815 and 1914. The British Empire was the leading economic power for most of the 19th century, a position supported by its agricultural prosperity, its role as a dominant trading nation, a massive industrial capacity, significant technological achievements, and the rise of 19th-century London as the world's principal financial centre. At its height in the 1920s, the empire encompassed around a quarter of the world's landmass and population, and was the largest in history. However, its involvement in the First World War and in the Second World War damaged Britain's economic power, and a global wave of decolonisation led to the independence of most British colonies. (Full article...)
The British Empire comprised the dominions, colonies, protectorates, mandates, and other territories ruled or administered by the United Kingdom, that had originated with the overseas colonies and trading posts established by England in the late 16th and early 17th centuries. At its height it was the largest empire in history and, for over a century, was the foremost global power. By 1922, the British Empire held sway over a population of about 458 million people, one-quarter of the world's population, and approximately a quarter of the Earth's total land area. As a result, its political, linguistic and cultural legacy is widespread. At the peak of its power, it was often said that "the sun never sets on the British Empire" because its span across the globe ensured that the sun was always shining on at least one of its numerous territories. The growth of Germany and the United States eroded Britain's economic lead by the end of the 19th century. Subsequent military and economic tensions between Britain and Germany were major causes of the First World War, for which Britain leaned heavily upon its Empire. The Second World War accelerated the decline of the Empire. Within two years of the end of the war, Britain granted independence to its most populous and valuable colony, India. During the remainder of the 20th century, most of the territories of the Empire became independent. After independence, many former British colonies joined the Commonwealth of Nations, a free association of independent states. Fourteen territories remain under British sovereignty, the British Overseas Territories. (Full article...)
Ernest Augustus, King of Hanover (1771–1851) was King of Hanover from 20 June 1837 until his death. He was the fifth son and eighth child of George III, who reigned in both the United Kingdom and Hanover. As a fifth son, initially Ernest seemed unlikely to become a monarch, but Salic Law, which debarred women from the succession, applied in Hanover and none of his older brothers had legitimate male issue. Ernest was born in Britain, but was sent to Hanover in his adolescence for his education and military training. While serving with Hanoverian forces in Wallonia against Napoleon, he received a disfiguring facial wound. In 1799, he was created Duke of Cumberland and Teviotdale. Although his 1815 marriage to the twice-widowed Frederica of Mecklenburg-Strelitz met with the disapproval of his mother, Queen Charlotte, it proved a happy relationship. Ernest was active in the House of Lords, where he maintained an extremely conservative record. There were persistent allegations (reportedly spread by his political foes) that he had murdered his valet and had fathered a son by his sister. Before Victoria succeeded to the British Throne, it was rumoured that Ernest intended to murder her and take the Throne himself. When King William IV died on 20 June 1837, Ernest ascended the Hanoverian Throne. Hanover's first ruler to reside in the kingdom since George I, he had a generally successful fourteen-year reign, but excited controversy when he dismissed the Göttingen Seven for agitating against his policies. (Full article...)

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