Events from the year 1820 in Scotland. Incumbents Law officers Lord Advocate – Sir William Rae, Bt Solicitor General for Scotland – James Wedderburn Judiciary Lord President of the Court of Session – Lord Granton Lord Justice General – The Duke of Montrose Lord Justice Clerk – Lord Boyle Events 13 March – Clan Grant raid on Elgin in a disputed election to the town council. 1–2 April – a proclamation, signed "By order of the Committee of Organisation for forming a Provisional Government", is distributed in the Glasgow area, beginning the "Radical War" in Scotland. The following day, around 60,000 – particularly weavers – stop work across a wide area of central Scotland. 5 April – Radical War: "Battle of Bonnymuir" – troops capture radicals near Bonnybridge. 8 April – Radical War: Radical prisoners from Paisley are freed from jail in Greenock after militia have killed eight of the crowd. 22 April – Walter Scott is created 1st baronet of Abbotsford in the County of Roxburgh in the Baronetage of the United Kingdom. 1 May – Robert Owen's Report to the County of Lanark, of a plan for relieving public distress and removing discontent (published 1821) is delivered. 26 July – opening of Union Chain Bridge across the River Tweed between England and Scotland, designed by Captain Samuel Brown. Its span of 449 ft (137 metres) is the longest in the Western world at this time, and it is the first wrought iron vehicular suspension bridge of its type in Britain. 30 August – Radical War: Radical leader James Wilson, a Strathaven weaver, is executed for treason on Glasgow Green for his part in the rising. 8 September – Radical War: Radical leaders John Baird and Andrew Hardie are executed at Stirling for their part in the rising at Bonnybridge. 10 October – thief David Haggart murders the keeper of the Dumfries tolbooth while escaping imprisonment. 15 December – (1812) is wrecked near Craignish. 22 December–23 May 1821 – Radical War: Remaining prisoners are transported from England to Australia on the convict ship Speke. The United Secession Church is established as a Presbyterian denomination by union of various churches which have seceded from the established Church of Scotland. Finishing of work on Charlotte Square completes the first New Town, Edinburgh. Remainder of the Nor Loch in Edinburgh is drained to form what will become Princes Street Gardens. The Edinburgh