quest. He drove the Moslems out of France, but they maintained themselves in Spain where Abd-ar-Rahman founded the Caliphate of Cordova, which became the greatest centre of science and art of mediæval Europe.

This Moorish kingdom, so-called because the people came from Mauretania in Morocco, lasted seven centuries. It was only after the capture of Granada, the last Moslem stronghold, in the year 1492, that Columbus received the royal grant which allowed him to go upon a voyage of discovery. The Mohammedans soon regained their strength in the new conquests which they made in Asia and Africa and to-day there are as many followers of Mohammed as there are of Christ.