The UK is expected to leave the EU on 29 March 2019, in the absence of an agreed extension to the notice period.
The negotiations are expected to be concluded to allow time for approval of the withdrawal agreement by the European Council, the European Parliament and the UK Parliament.
Federal elections take place in Germany.
The Queen's Speech outlines the Government's legislative and policy agenda for the Parliamentary session 2017-2019. Eight Bills relate to Brexit, including the Repeal Bill, the Trade Bill, the Customs Bill and the Immigration Bill.
Formal negotiations on the UK's withdrawal from the EU begin. The initial focus will be on citizens' rights, a financial settlement and other separation issues (such as protection of the Good Friday Agreement and maintenance of the Common Travel Area). The UK's future trade relationship with the EU will be discussed later. There will be one week of negotiations every month.
MPs approved a motion to call a UK general election by 522 votes to 13. The election takes place on 8 June 2017.
The general election campaign gets underway, with the parties publishing their manifestos.
The dissolution of Parliament takes place 25 working days before the election.
Summit of the EU 27, at which the negotiating guidelines are adopted.
The President of the European Council publishes draft negotiation guidelines for the EU 27 (the EU members excluding the UK).
A white paper, giving details of the Bill, is published.
Article 50 notice is given, triggering Brexit. The notice period is two years.
60th anniversary of the signing of the Treaty of Rome, which led to the founding of the EEC.
The Bill receives Royal Assent and becomes an Act, giving the Government the legal power to formally begin the Brexit process by notifying the European Council of the UK's intention to leave the EU.
Parliament passes the Bill, which will give the Government authority to give notice to the EU under Article 50.
Third reading in the House of Commons; Bill passed by 494 votes to 122. It now moves to the House of Lords.
The Government publishes its white paper on the UK's exit from and new partnership with the EU, formally setting out its strategy for leaving the EU.
The Bill is passed in the House of Commons by 498 votes to 114. It will now move on to the committee stage in the House of Commons, then the House of Lords.
The Government publishes the draft legislation that will allow the UK to start the process of leaving the EU. The European Union (Notification of Withdrawal) Bill has been produced after the Supreme Court ruled legislation is necessary.
Supreme Court rules that Government cannot trigger Article 50 without an Act of Parliament but does not have to consult the devolved legislatures in Scotland, Wales and Northern Ireland.
Theresa May makes a speech ruling out remaining in the single market or the customs union but states that Parliament will have a vote on any Brexit deal.
Bond Dickinson holds an event on data protection: GDPR, Brexit and emerging issues.
The Government's appeal against High Court decision heard by Supreme Court.
High Court rules that Government cannot trigger Article 50 without being authorised by Parliament.
Bond Dickinson takes part in the inaugural South West World Trade Summit, organised by the Institute of Export.
The event, held in Taunton, aimed to provide advice and guidance to business leaders in the region to help them prosper in international trade following Brexit.
High Court hears Article 50 judical review case.
Theresa May announces that Article 50 will be triggered before the end of March 2017 and the Queen's Speech will include a Great Repeal Bill to repeal the European Communities Act 1972.
Bond Dickinson takes part in Brexit panel discussions sponsored by Womble Carlyle and the British-American Business Council.
Take a look at videos from the event:
Theresa May becomes the second female Prime Minister of the United Kingdom.
Result is declared: 51.9% vote to leave, 48.1% vote to remain. Prime Minister David Cameron resigns.