After the 1846 occupation and annexation, New Mexico was brought under the civil law of the United States (Kearny Code), and government officials for New Mexico were immediately appointed by Gen. Kearny. Thereafter, New Mexico was governed by civil and military officials who received their appointments from Washington.
Thus began New Mexico’s territorial period, which lasted 66 years, until our old and venerable Nuevo Mexico, long a Spanish and Mexican province, was admitted to the Union as the 47th state in 1912.