After 18 years of negotiations, since September 9, 1957, encouraged by the interest of the residents of 36 communities in the upper basin Chancay, in the decade of the seventies making the desire to become actually the May 11, 1976 with the enactment of Law No. 21,488 Building signed by the President of the Republic, General Francisco Morales Bermúdez EP, coincidentally, grandson of President who created the district Huaral http://es.wikipedia.org/wiki/Provincia_de_Huaral