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Events on Wednesday 29 March 2017 1
2017UK formally triggers Article 50 to begin BrexitBritain starts two-year countdown to leave the EUPrime Minister Theresa May formally invoked Article 50 of the Treaty on European Union, starting the two-year process for the United Kingdom's withdrawal from the European Union. The move followed the 2016 Brexit referendum and set March 2019 as the initial departure date. Negotiations with the EU began in the following months.