By 3000 BCE (Before the Common Era), ancestors of the Mogollon, Hohokam, and Puebloan peoples of the Southwest (Arizona and New Mexico) develop sophisticated horticultural and agricultural practices that continue to this day, including growing and harvesting several strains of corn, beans, and squash in harsh environments. During this period, not only does the population increase but so does the sophistication of culture, arts, and technology (Native Voices, "3000 BC: Southwestern peoples plant corn, beans, squash; population grows").