Timetable here. An historic moment…

UPDATE: Brexit Secretary David Davis:

“The British people have made the decision to leave the EU and this government is determined to get on with the job of delivering it. So today we have introduced a Bill in Parliament which will allow us to formally trigger Article 50 by the end of March. I trust that Parliament, which backed the referendum by six to one, will respect the decision taken by the British people and pass the legislation quickly.”