A total solar eclipse path swept directly over Scotland and northern England, causing such an intense and sudden midday darkness that the event became immortalized in local folklore as 'Mirk Monday'. In Edinburgh, Scotland, citizens panicked as birds stopped singing and cattle rushed back to their barns. Coming in the immediate chaotic aftermath of the execution of King Charles I and during Oliver Cromwell's rise, the eclipse was heavily politicized by both Royalists and Covenanters as a sign of God's anger.

The term 'Mirk Monday' passed deeply into Scottish ballad traditions and regional poetry, serving as a standard linguistic marker for absolute darkness or political despair. It influenced generations of Scottish writers who used the historic darkness as a metaphorical backdrop for stories of national betrayal and religious upheaval.