Westward expansion is most directly reflected development in the excerpt in the US during the first half of the nineteenth century.
Westward expansion was a movement conducted by settlers in the American West. The expansion was seen as an opportunity as the "access to western land offered the promise of independence and prosperity to anyone willing to meet the hardships of frontier life."
Development can be defined as the situation where a person, country or any concept becomes progressive and stringer than before. It is the condition of advancement with more ease and facilities. Development can be complying, merit or non-complying.
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