Brexit supporters have been celebrating through the night as the UK ended 47 years in the European Union.
Thousands of people gathered in central London for a party led by Nigel Farage.
In a recorded message, Prime Minister Boris Johnson promised a new era and a new chapter in Britain's history.
But it was a different story in Edinburgh in Scotland, where people attended a candlelit vigil to bid a sad farewell.
It's been over 1,300 days since the referendum in 2016 with countless discussions and twists in the tale, which included fears for a hard border in Northern Ireland and a backstop, before the current agreement of customs checks taking place in the Irish Sea.
The UK has now entered a transitional phase, which is expected to last 11 months for trade talks.
