Lewis and Clark expeditions (26 jul 1806 año – 26 jul 1808 año)
Descripción:
 Lewis and Clark explored the recently purchased Louisiana, and eventually explored all the way to the pacific. This was the first expedition of its kind, and it mapped out a lot of the continental U.S.
The effect that this had on culture had to do with the fact that it was an example of Europeans working together with Natives like Sacajawea to accomplish a shared goal. It also led to a bolstering of American patriotism because it was a major accomplishment in the name of the new nation. 
Añadido al timeline:
fecha:
26 jul 1806 año
26 jul 1808 año
 ~ 2 years
Fotos:
![]()