Gray, Robert (17551806), a United States sea captain and fur trader. In 1792. while sailing along the Pacific coast, he discovered the Columbia River and named it for his ship. His discovery helped the United States later to establish its claim to the Oregon territory. Gray was born in Tiverton, Rhode Island. During 178990 he commanded the Columbia on the first voyage to carry the United States flag around the world. He again circumnavigated the globe in 179093. Gray later settled in Boston as a master of coastal vessels.Captain Robert Gray discovered and named the Columbia River in Oregon.
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?