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And the occasion is set to be marked with an event, similar to US Independence Day, when all new laws will take effect. One of the biggest issues facing the UK Government is how it will separate British domestic laws from laws that have been driven through in Brussels. And in order to successfully achieve a change over they have to ratify a day which will go down in history as "Brexit Day".

GETTY Brexit day is on the cards and those who support it will celebrate

The Government has indicated that these legal changes within the Bill would take effect on “Brexit Day” UK Parliament Report

Mrs May announced plans to introduce a “Great Repeal Bill” in the next Queen's Speech, which will repeal the European Communities Act 1972 and incorporate European Union law into domestic law, “wherever practical”. And a Parliamentary report has revealed: "The Government has indicated that these legal changes within the Bill would take effect on “Brexit Day”: the day the UK officially leaves the European Union (EU)". The claims were made in a Parliamentary briefing paper that was issued to members of Parliament in the Commons.

GETTY Could the people of the UK organise street parties like this one during the Royal Wedding?

It was handed over before they voted for the Brexit bill to go through and before it received Royal Assent from Her Majesty the Queen. The Brexit Day events are likely to be similar to that of those celebrated earlier this week on Commonwealth Day. And insiders say it's likely that as well as an event in Parliament that the occasion will be marked in style.

GETTY Theresa May's Government is planning for a Brexit day

The United Kingdom became a fully-fledged member of the European Economic Community on New Years' Day 1973. Ireland and Denmark also joined Britain in becoming the newest members of the community at that time bringing a total of nine states to the club. At midnight a Union Jack flag was raised at the EEC's headquarters in Brussels to mark the occasion.

GETTY During the Royal Wedding lots of Britons took to the streets to celebrate

Celebrations were held on the streets of Brussels who enjoyed a torch lit procession. More than 1,000 Britons relocated to Belgium in 1973 to take up their places as civil servants of the community. At that time Britain was given four votes within the council and policy was focussed on public and environmental health.

May's Brexit speech: World reacts LIVE Tue, January 17, 2017 Politicians and celebrities tweet their reaction as Theresa May unveils her 12 point plan for Britain leaving the EU. Play slideshow Twitter 1 of 8 President of the European Council, Donald Tusk tweets his frustration.