One of the primary consequences of the railroad in the United States was the creation of a system by which goods could easily be moved east to west, opening new sections up that were previously only accessible by horse or on foot.
"It means Emperor of Rome who stopped the persecution of Christians and in 324 made Christianity the official religion of the Roman Empire; in 330 he moved his capital from Rome to Byzantium and renamed it Constantinople"
It killed more than 1/3 of Europe’s population. Because so many people died there was very little slaves. The slaves moved to cities where they would get payed to work. Because there was no slaves working in homes the manor system in Europe fell apart and cities began to grow.
Rivers supplied not only water for the colonist, but transportation which also led to trade. Also a lot of wild life are around river which gave them food also weather it be fish in the rivers or animals that come to the river to drink. So rivers provided water, transportation, and food.