Our unit covers the Grade 4 Provincial Curriculum expectations. Travel back to Medieval Times to meet the Crusaders. Learn about the Feudal System, Muhammad, the spread of Islam, and the Christian Church. The origins of modern western civilization lie in the Middle Ages. It was a period of upheaval, change, and assimilation and the foundations of our present-day systems of law, commerce and banking, religion, education, government and social institutions were built by vigorous and creative peopl