Britain joined the European Economic Community (EEC) in 1973. The Maastricht Treaty signed in 1992, created the European Union (EU) and increased the movement of people between Europe and Britain. Britain voted to leave the EU in 2016
The twentieth century saw the end of the British Empire as British colonies gained independence. This process is known as 'decolonisation. As the British Empire ended the Commonwealth emerged. This was an independent association of countries that had once been part of the British Empire
After Britain joined the EEC in 1973, the 1988 Immigration Act ensured that economic migrants from within the EDC could enter and remain in Britain for work. The Maastricht Treaty introduced EU citizenship for all nationals of member states, not just workers. This continued while Britain remained a member of the EU until 2016
People living in British colonies were given British citizenship, and passports, which gave them the right to enter Britain and stay for as long as they wanted. The 1948 Act was not intended to bring non-white subjects to Britain; it was hoped that white settler families in Canada, Australia, New Zealand and South Africa would be encouraged to return
During the 1930s, the British government dropped visa and entry requirements to allow Jewish children to leave Nazi Germany immediately and migrate to Britain for safety
During the First and Second World Wars, men from countries colonised by the British Empire fought in the British Army. During both wars, migrants from the colonies, including the Caribbean and Africa, moved to Britain to work for the war effort
People from the Caribbean migrated to help rebuild Britain after the Second World War. Those who migrated between 1948 and 1973 are known as the 'Windrush generation' after the first ship that brought migrants from the Caribbean to Britain
The British government accepted well-qualified Jewish refugees from Nazi Germany in the 1930s as it became clear that they were being persecuted. The British government then decided to help Jewish children rather than any more Jewish adults, which led to the Kindertransport. This stopped in 1939 when war was declared, and the borders were closed
European refugees from the Second World War migrated to Britain to stay safe, including refugees from Communist regimes in Eastern Europe such as Poland
In 1951, Britain signed up to the United Nations Convention on Refugees, promising to offer asylum to refugees facing persecution. The number of refugees who applied to Britain for asylum increased throughout the late twentieth century and have included people from Somalia, Afghanistan and Ukraine
Belgians were welcomed during the First World War, but the British government made it clear that they were only expected to stay for the duration of the war and in 1918 they were given a ticket home
Some British people turned against Germans, and the media fuelled anti-German feeling, leading to an increase in violence towards Germans and their businesses
There was tension between the lascars and the existing population over competition for jobs. Riots broke out in cities such as Liverpool and Cardiff in 1929
In 1968, Enoch Powell (Conservative MP for Wolverhampton, where there was a Caribbean and Asian migrant community) made his anti-migrant "RiversofBlood' speech against non-white migrants