What the British prime minister said in her letter to the EU – and what she meant.
Will the UK have to pay a vast sum of money to the EU in order to leave it – or will it get cash back?
Next the negotiations begin, and Britain has two years to negotiate a trade deal with the EU if it wants to avoid the WTO cliff edge.
The ones to watch on either side of the negotiating table.
The starting gun has been fired but political pressures on both sides of the Channel make a settlement a tall order.
The two-year period for withdrawing from the EU has been launched, so what happens next?
There are 27 member states left in the European Union. Somehow, they all need to agree on what they want from Brexit.
For Australia, Brexit is the diplomatic equivalent of moving into a shared house with a divorcing couple.
Five principles of bargaining to help you understand what's going on in the Brexit negotiations.
She's worked hard to get where she is, but the prime minister lacks vision and fails to inspire.
The Treaty of Rome, which eventually led to the European Union, is turning 60 at a time when many inside and outside Europe are questioning the union's value. For the U.S., much is at stake.
Some radical thinking is in order if the union is to overcome the current crisis.
Constitutional inflexibility can lead to messy divorces – and cost Charles his head.
With Spain spying an opportunity and major questions about economic stability, Brexit is causing sleepless nights on the Rock.
Taking a hard line on hard Brexit has cost Britain goodwill just as it needs allies.
Nicola Sturgeon, Scotland's first minister, has indicated that the country will again seek independence – this time against the backdrop of Brexit.
The debate about what role the Lords play in Brexit is potentially based on a misunderstanding about what the upper house actually does.
It's almost as though Europe saw Brexit coming when the Treaties of Rome were signed in 1957.
Government departments have been squeezed particularly hard over the past few years. Now they need to find thousands of people who can work out how to leave the EU.
Despite pages and pages of proposed amendments, not a single one was passed.