Britain leaves 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.
Britain is to leave the European Union at 23:00 GMT on Friday, 43 months after the country voted in a June 2016 referendum to leave the EU.
Nothing will change for most people in Britain