Wasn’t that before the industrial revolution?
In the earliest days of the Industrial Revolution, the southerners (Edinburgh and Glasgow) in cahoots with England devised a plan to "import" cheap labor from the Scottish Highlands by burning the fiercely independent and traditonal highlanders off their ancestral lands and into the tenements to labor, swelter and die. They confiscated weapons and forbid the wearing of the clan tartans as part of breaking them.
Here is a most fascinating and readable history of the Scots people:
How the Scots Invented the Modern World: The True Story of How Western Europe's Poorest Nation Created Our World and Everything in It