The historical tradition expressed by the Scots in 1320 in the Declaration of Arbroath is often regarded as fiction but may very well be more factual than suspected.
“They journeyed from Greater Scythia by way of the Tyrrhenian Sea and the Pillars of Hercules, and dwelt for a long course of time in Spain among the most savage tribes, but nowhere could they be subdued by any race, however barbarous. Thence they came, twelve hundred years after the people of Israel crossed the Red Sea, to their home in the west where they still live today. The Britons they first drove out, the Picts they utterly destroyed, and, even though very often assailed by the Norwegians, the Danes and the English, they took possession of that home with many victories and untold efforts; and, as the historians of old time bear witness, they have held it free of all bondage ever since...”
“... It is in truth not for glory, nor riches, nor honours that we are fighting, but for freedom — for that alone, which no honest man gives up but with life itself.”
Good find! The t-shirts at the Scottish games quote the stirring lines about fighting for freedom, not the part about the origins of the Scots.