Henry, Andrew (1775?–1833), a United States fur trapper and explorer. Henry was born in York County, Pennsylvania, and moved to Missouri in 1800. In 1809 he joined Manuel Lisa and Jean Pierre Chouteau in founding the Saint Louis Missouri Fur Company. On his first trip to the Northwest in 1810, Henry explored the three forks of the upper Missouri River. His party wintered near the mouth of the Snake River. In 1822 Henry and William H. Ashley formed a partnership for trading and trapping. Jim Bridger, Tom Fitzpatrick, and other mountain men joined them in an expedition during 1822–24.
Nomadic hunters entered what is now Iowa as early as 10,000 B.C., coming on foot.
In the early 1800s, the United States witnessed the birth of the railroad industry and along with it, dramatic changes in American society and business. What was life like before and after the railroads?