It was the British who controlled that area as well as most of the rest of the world
Answer:
Migrants eventually induce social, economic, and political problems in receiving countries, including
1) increases in the population, with adverse effects on existing social institutions;
2) increases in demand for goods and services;
3) displacement of nationals from occupations in the countryside and in the cities;
4) increases in the size of the informal sector of the national economy;
5) deterioration in the salary structures of the informal, rural, and urban sectors of the economy;
6) transculturation;
7) occasional loss of customs and traditions by the local population; and
8) the introduction of diseases and social problems. The receiving countries do benefit from the infusion of skills.
Jefferson directed Meriwether Lewis to gather as much information as he could concerning the possibility of trade with merchants there, and during the winter of 1803-04 Lewis considered conducting a personal reconnaissance of the Indian route to Spanish country that led up the Kansas River.