Timeline: From No vote to now

18 SEPTEMBER, 2014: Scotland votes no to independence by 55 per cent to 45 per cent.

NOVEMBER: Alex Salmond resigns as first minister and SNP leader, being replaced by Nicola Sturgeon.

7 MAY, 2015: SNP wins 56 of Scotland’s 59 seats at the UK general election.

5 MAY, 2016: SNP wins Scottish Parliament election, taking 63 seats but falling short of overall majority.

SEPTEMBER: SNP launches “listening exercise” designed to gauge public mood about independence.

23 JUNE: UK votes to leave EU in the Brexit referendum. Scotland votes Remain.

24 JUNE: Ms Sturgeon says another vote on Scottish independence is now “highly likely”. MARCH 2017: Ms Sturgeon writes to Theresa May formally requesting right to hold indyref2, but the Prime Minister says “now is not the time” for such a vote.

8 JUNE: SNP loses 21 seats at snap UK general election, but still holds the most of any party, at 35.

27 JUNE: Ms Sturgeon puts plans for indyref2 on hold but says a vote before 2021 is still “likely”.

25 MAY, 2018: SNP publishes Growth Commission report, making new economic case for independence.

24 APRIL, 2019: Ms Sturgeon says she wants a fresh independence vote to be held before May 2021, calling for the SNP and Yes supporters to focus on growing support so UK cannot refuse permission indefinitely.