Díaz's presidency was characterized by the promotion of industry and the development of infrastructure by opening the country to foreign investment. Díaz suppressed opposition and promoted stability to reassure foreign investors. Farmers and peasants both complained of oppression and exploitation. The situation was further exacerbated by the drought that lasted from 1907 to 1909. The economy took a great leap during the Porfiriato, through the construction of factories, industries and infrastructure such as railroads and dams, as well as improving agriculture. Foreign investors bought large tracts of land to cultivate crops and range cattle for export. The cultivation of exportable goods such as coffee, tobacco, henequen for cordage, and sugar replaced the domestic production of wheat, corn and livestock that peasants had lived on. Wealth, political power and access to education were concentrated among a handful of elite landholding families mainly of European and mixed descent. These controlled vast swaths of the country through their huge estates (for example, the Terrazas had one estate in Sonora that alone comprised more than a million acres). Many Mexicans became landless peasants laboring on these vast estates or industrial workers toiling long hours for low wages. Foreign companies (mostly from the United Kingdom, France, and the U.S.) also exercised influence in Mexico.
