Why were the battles in the west important?

Why did western European armies fight in the Crusades? What aspects of European society did the church dominate from 1100-1300? Who was Christopher wren and what did he do? How did "father" get shortened to "dad"? What is the origin of the T-shirt? Which was a long term effect of building railroads across the west? What was Charles Martel is credited with? Why have Western European countries bacome leaders in the shipping industry? What is the social and Commercial Center of a Roman city? How was slavery in West Africa different from later slavery in the Americas? What is the origin of stuck in your craw? Which was an important long-lasting effect of the Crusades? Did the roman provinces rebel? To what extent and in what ways may the renaissance be regarded as a turning point in the western intellectual tradition? What year is mmv1? What factors contributed to the successes of the West in the age of discovery? What Public works were created during Pax Romano in ancient Rome? What comes after century century? What are some weapons that the gladiators used? Is Rome a flat place?