El Universal is a Mexican newspaper based in Mexico City. El Universal was founded by Félix Palavicini and Emilio Rabasa in October 1916, in the city of Santiago de Querétaro to cover the end of the Mexican Revolution and the creation of the new Mexican Constitution. The circulation of the print edition of El Universal is more than 300,000 readers. In 2013 the El Universal website claimed to have an average of more than 16 million unique visitors each month, with 140 million page views, and 4 million followers on Facebook. Aviso Oportuno is the classifieds service of El Universal. The brand has become widely known in Mexico, and the phrase Aviso Oportuno is sometimes used as a generic term for the classifieds business. This brand has four sub-sites: Inmuebles, Vehículos, Empleos and Varios (Real Estate, Vehicles, Jobs and Miscellaneous). News items are open to reader comments through a simple sign-up system which has resulted in many accusations of bias and propaganda. The system also tends towards anonymity and abuse by having questionable users and operators pass as average readers discrediting political and journalistic adversaries. Controversies The publication has been accused by the political left in Mexico of having a cozy relationship with past governments during key periods in the nation's fraught history. The day after the Tlatelolco massacre on October 3, 1968, at the height of the Mexican Dirty War, El Universal published misleading headlines such as, «Terrorists and Soldiers Sustain Harsh Combat During Several Hours» and «Tlatelolco: Battle Camp». Under pressure, the editorial board gave a statement saying, "With pride, we can say that 'El Universal' adequately covered the facts during those days. Perhaps, like many of the publications of our era, we had too much confidence in the word of our government, but we've been honest." On December 3, 2012, political expert and city planner Andrés Lajous wrote a column in Animal Político justifying his exit from El Universal as the editorial board had modified the title of his column titled, «El robo de vehículos durante el gobierno de Peña Nieto» (the theft of cars during the government of Peña Nieto)", referencing President Enrique Peña Nieto when he was the governor of the State of Mexico and his ties to the theft of vehicles. The column was published on April 13, 2012. In his article, Lajous Loaza argues that when he tried to summon a response from