When did New Mexico start to speak English?

Answer 1

[1] The far northeastern part of New Mexico became part of the United States, with the Louisiana purchase of 1803. [2] But the rest of the state remained in Spanish hands until 1821. [3] The state was then in Mexican hands until 1836-1853. It took 17 years for areas of the state gradually to become part of the United States with the secession of Texas from Mexico, the end of the Mexican-American war in 1848, the Compromise of 1850, and the Gadsden purchase of 1853. [4] New Mexico never attracted the number of Spanish-speaking settlers that California and Texas did. In fact, it was sparsely populated, except by Native Americans such as the Hopi and the Zuni, until it became part of the United States. So it was relatively easy for English speakers to start moving in during the almost 60 years until actual statehood in 1912.