The United Kingdom's departure from the European Union marked the end of a membership that had lasted for 47 years. This event was formalized through a legislative instrument known as Article 50 of the Lisbon Treaty, which allows a member state to withdraw from the Union. The decision to leave the EU, colloquially referred to as Brexit, was first made by the UK electorate during a referendum held in June 2016, where 51.9% of voters favored leaving. This event followed months of fraught negotiations concerning the terms of withdrawal, with numerous votes in the UK Parliament reflecting the deep divisions on how best to proceed with Brexit and its implications for future relations with Europe.As the clock struck 11 PM Greenwich Mean Time on January 31, 2020, the UK's departure was celebrated by some and lamented by others. The breaking of ties involved not only political and legislative changes but also significant implications for businesses, individuals, and the economy. The end of free movement for EU citizens into the UK and the new trade agreements highlighted the significant shifts that would govern the post-Brexit landscape. Various observers pointed out that the negotiation process would continue long after the official departure, particularly concerning issues like trade, security, and customs arrangements.The event was marked by ceremonies in Westminster and various other locations throughout the country, highlighting both the pride and apprehension held by different sectors of society. Many celebrated it as a reclamation of sovereignty, while opponents expressed concern over potential economic setbacks and the loss of rights and freedoms previously enjoyed under EU accords.