British Prime Minister Theresa May became the first leader to invoke Article 50 on March 29, 2017, following British voters' decision to pursue Brexit – the UK's exit from the EU – in a referendum on June 23, 2016. Wrangling in the courts and Parliament slowed the process down, but the government kept to its original timeline of triggering Article 50 by the end of March 2017.
Read Article 50
Extending Article 50
