Apart from the land, the weather, and local legal and social conditions, religion had the greatest impact on the daily lives of ordinary people in the High Middle Ages. Religious practices varied widely from country to country and even from province to province. But nowhere was religion a one-hour-a-week affair. Most people in medieval Europe were Christian, but there were small Jewish communities scattered in many parts of Europe, and Muslims lived in the Iberian Peninsula, Sicily, and other Mediterranean islands.