The Darien scheme was an unsuccessful attempt by the Kingdom of Scotland to establish a colony called "New Caledonia" on the Isthmus of Panama in the 1690s, and is seen by many as the last attempt for Scotland to keep its independence viable.Its failure led to Scotland being too weak economically to go on independently signing the Act of Union with England in 1707.
So what would happen if the scheme was a massive success,creating a thriving colony which leads to Scotland being able to repay its debts to the Bank of England an strengthens their economy.