Britain leaves the EU
Britain left the European Union on Friday, ending more than four decades of economic, political and legal integration with its closest neighbours.
But things will feel the same for many months, owing to a transition period intended to allow both sides time to agree the terms of their future partnership.
Three Brexit deadlines came and went before the British parliament finally ratified the divorce agreement.
Nothing will change for most people in Britain thanks to the transition period, which preserves the status quo until at least December 31, 2020.
Here are the key moments ahead:
February/March: trade talks begin
British Prime Minister Boris Johnson is to flesh out his ideas for a free trade agreement along the lines of a recent EU deal with Canada, in a speech in early February.
The EU mandate could be approved by national ministers on February 25, officials in Brussels suggest, which would mean talks could begin around March 1.
Britain is hoping to open trade talks with the United States and other non-EU countries around the same time.
July 1: extension deadline
The transition period is scheduled to last until December 31, 2020.
December 31: transition ends
A new deal would allow the two sides to embark on a new partnership.
Failure to agree would see cross-Channel trade, transportation and a multitude of other ties severely disrupted overnight.