What does 'of yore' mean?

How did the transition for hunter- gatherer to farmer- herder lead to civilization? When did martin become a paster where was his church? Which is the westernmost US state? What is a harlequin? What did rich Romans eat for breakfast? Why did the Romans use lead for aqueducts? How did Spain become Europe's richest and most powerful nation in the sixteenth century and then fell into a equally dramatic decline during the seventeenth century? What year was 14 years ago? What is the origin of the saying Holy Toledo? What title were the two rulers of rome called during the republic? How did prometheus influence Western civilizations? What is a medieval drinking horn holder called? What war was ended by the treaty of Utrecht? The first civilization began on what continent? What was the state religion of the Eastern Roman Empire circa 1300? How did the political development of the Holy Roman Empire differ from that of England and France? What year did Constantine move the capital to byzantium? What major world religion began during the roman empire? What is common in Eastern Bloc Nations? Is it true that The Crusades helped increase the flow of trade in Europe?

What does 'of yore' mean?