Modern immigration to the United Kingdom

Since 1945, immigration to the United Kingdom, controlled by British immigration law and to an extent by British nationality law, has been significant, in particular from the former territories of the British Empire and the member states of the EU and EFTA. Since the UK's withdrawal from the European Union, migration from countries outside the European Economic Area has dominated immigration to the UK. The British Nationality Act 1948 granted residency rights to all colonial subjects, approximately 800 million, enabling mass post-war immigration. The Commonwealth Immigrants Acts (1962, 1968) and Immigration Act 1971 rescinded these rights by introducing work vouchers and ancestral requirements that favoured those with parent or grandparent to have been born in the UK. The British Nationality Act 1981 abolished the 1948 citizenship status.

Source: Wikipedia — Modern immigration to the United Kingdom (CC BY-SA 4.0)