British diaspora

The British diaspora consists of British people and their descendants who emigrated from the present-day United Kingdom, or people who have acquired British Nationality through colonisation. The diaspora is concentrated in countries such as the United States, Canada, Australia, New Zealand, South Africa, and Hong Kong, as well as parts of the Caribbean and continental Europe, such as Spain. About 1.2 million British citizens live in Australia.

After the Age of Discovery the various peoples of the British Isles, and especially the English, were among the earliest and by far the largest communities to emigrate out of Europe, and the British Empire's expansion during the first half of the 19th century saw an extraordinary dispersion of the British people, with particular concentrations in Australasia and North America.

The British Empire was "built on waves of migration overseas by British people", who left Great Britain, later the United Kingdom, and reached across the globe and permanently affected population structures in three continents. As a result of the British colonisation of the Americas, what became the United States was "easily the greatest single destination of emigrant British", but in the Federation of Australia the British experienced a birth rate higher than anything seen before, resulting in the displacement of indigenous Australians.

In colonies such as Southern Rhodesia, Hong Kong, Singapore, Jamaica, Barbados, British East Africa and the Cape Colony, permanently resident British communities were established and while never more than a numerical minority these Britons exercised a dominant influence upon the culture and politics of those lands. In Australia, Canada and New Zealand people of British origin came to constitute the majority of the population contributing to these states becoming integral to the Anglosphere.

...
Wikipedia