USA history
even if the united states of america emerged as an independent country after 1776 and recognized in 1783 the history of these lands is deeper than that thousands of years ago the first people settled in the american continent it is not exactly known how the native americans first settled in these territories but a theory says that people migrated from eurasia starting thirty thousand years ago across a land bridge known as beringia this connected siberia to north america during the ice age this migration continued until 10 000 years ago at that time a glacial period ended and the land bridge became submerged by the rising ocean but the early inhabitants were called the paleoamericans in time they migrated even deeper in america's and they formed tribes and nations they created interesting civilizations developing their own culture among the cultures that existed here we can mention adena culture iroquois culture cole's creek culture pueblo and culture and mississippian cultu...