Before the arrival of Europeans in the Great Lakes region, it is estimated that there lived between 60,000 and 117,000 people. From Europeans the Great Lakes were first discovered and partially explored by the French. At the beginning of the 16th century, the French first explored the forests in the Saint Lawrence Valley and began to exploit the entire space for resources. The first area they occupied and created a settlement is the area of today’s capital city of Canada in 1615. In the south and east, the English and the Dutch began settling, however, the French managed to take over the entire area and establish a trade route with Europe. By 1670, the French built a network of settlements for the protection of trade routes. The first fortress in this area, “Fort Frontenac”, was built in the present place of Kingston in the state of Ontario, Canada. During the 17th and early 18th centuries, new British and French settlements and fortress were built, until the conflict broke out for the territories. From 1727 the area of the Great Lakes belong to the United Kingdom, but the southern part of the lake is very short. After the American Revolution, the British managed to maintain power in the north of the lake, while the southern part the lake becomes a significant link for the entire development of the United States. The US government In 1787, it adopted a decree that gives the land around the Great Lakes immigrants to use.