Antonio de Espejo
In February 1583, Espejo arrived at the territory of the Piros, the most southerly of the Pueblo villagers. From there the Spanish continued up the Rio Grande. Espejo described the Pueblo villages as "clean and tidy". The houses were multi-storied and made of adode bricks. "They make very fine tortillas," Espejo commented, and the Pueblos also served the Spanish turkeys, beans, corns, and pumpkins. The people "did not seem to be bellicose". The southernmost Pueblos had only clubs for weapons plus a few "poor Turkish bows and poorer arrows". Further north, the Indians were better armed and more aggressive. Some of the Pueblo towns were large, Espejo described Zia as having 1,000 houses and 4,000 men and boys. In their farming, the Pueblos used irrigation "with canals and dams, built as if by Spaniards". The only Spanish influence that Espejo noted among the Pueblos was their desire for iron. They would steal any iron article they could find.
Mexicali
In 1900, the U.S.-based California Development Company received permission from the government of Díaz to cut a canal through the delta's Arroyo Alamo, to link the dry basin with the Colorado River. To attract farmers to the area, the developers named it the "Imperial Valley". In 1903, the first 500 farmers arrived; by late 1904, 405 km² (100,000 acres) of valley were irrigated, with 10,000 people settled on the land harvesting cotton, fruits, and vegetables. The concentration of small housing units that straddled the border was called Calexico on the U.S. side and Mexicali on the Mexican side. Led by "Los Angeles Times" publisher Harry Chandler, one company controlled 800,000 hectares of land in northern Baja California by 1905, and began to build the irrigation system for the Valley. However, instead of using Mexican labor to dig the ditches, Chandler brought in thousands of Chinese laborers. Mexicali became culturally Chinese influenced.