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Well the primary advantage is the industrialized technology the North had. The railroads were used to ship supplies faster and the telegram was used to send messages faster.
6 electoral votes.
Hope you find that helpful
William the Conqueror and the Norman barons began to build hundreds of castles in areas of England that they took control of. In many cases the Saxons were used as the work force to build the castles. These early castles were mainly built from wood and are known as Motte and Bailey castles.