The expeditions of the land west of the Mississippi River by Lewis and Clark from 1803-06 were sanctioned by Pres Thomas Jefferson. The expeditions yielded much information about the environment and ethnic groups that populated the region, and led to further population by Americans.
Every society has a need for heroes who serve as role models. The U.S. is no exception and has produced its share of them -- Pres. Abraham Lincoln, aviator Charles Lindbergh, civil rights leader Martin Luther ...