due to the city's distant location from mexico city, the difficult times of mexico's independence in the early 19th century were largely absent from the region. however, the city had some importance after the mexican revolution of 1910. the mexican revolutionary álvaro obregón was born in hacienda siquisiva, a small town near navojoa. álvaro obregón became president of mexico after the revolt and initiated an "agricultural revolution" in the mayo/yaqui valley, introducing modern agricultural techniques and making this valley one of the most prosperous agricultural regions in mexico.