The 1706 Spanish founding and colonial era
Albuquerque was founded in 1706 by Spanish colonists under the leadership of provincial governor Francisco Cuervo y Valdés, who named the new settlement for the Duke of Alburquerque, the viceroy of New Spain at the time. (The first 'r' in 'Alburquerque' was eventually dropped from common American usage by the late 19th century.) The original settlement was a small group of farmsteads clustered around what is now the Old Town Plaza, with a modest church, a defensive garrison, and irrigated agricultural fields stretching west to the Rio Grande.
The Spanish colonial period (1706 through 1821) shaped the district's fundamental form. The plaza-centered urban planning — a central open square surrounded by adobe buildings facing inward, a church on one side, civic and commercial structures on the other sides — was the standard Spanish colonial New World city plan and remains visibly intact in Old Town today. The narrow streets radiating outward from the plaza, the adobe construction with thick walls and shaded portales (covered walkways), and the integration of small interior courtyards with commercial frontages all reflect this colonial-era design philosophy.
New Mexico transitioned to Mexican governance in 1821 with Mexican independence from Spain, and then to American governance in 1846 during the Mexican-American War. Each transition shifted Old Town's commercial and political character but preserved the underlying architectural form. The American period brought territorial-style additions to many adobe buildings — pediments, milled-lumber details, and brick coping atop adobe walls — that gave the district its current hybrid Spanish-colonial-meets-American-territorial appearance.