The Louisiana Purchase, annexation of Texas, and cession of land by Mexico were key steps in the westward expansion of the United States.
Chronological Order of Westward Expansion:
This expansion was fueled by the concept of Manifest Destiny and included acquisitions such as the Louisiana Purchase in 1803 and the purchase of Alaska from Russia in 1867.
These events are significant in the westward expansion of the United States, shaping its geographical boundaries and history.
https://brainly.com/question/29774506