The first sizable American migration into Texas occurred amid the following circumstances:
a. Ongoing Native American raids on Mexican villages.
b. A new Mexican nation in need of government revenue.
c. American westward expansion
d. All the Above
Explanation:
The history of Texas, as part of the United States, begins in 1845, but the occupation of the region dates from the Upper Paleolithic Period, around 10,000 BC.
