Jaridar Meziko da aka kafa a ƙarshen 1841 kuma wanda ƙirƙirarta ta mayar da martani ga tsananin takurawar da gwamnati ta sanyawa pressan jarida da kuma kafa Sabuwar ituan Majalisa wanda ya mayar da mulki ga Antonio López de Santa Anna a watan Satumbar shekarar.
Lokacin da jaridar Diario del Gobierno ta zargi majalisar da cewa "ta koma lokacin fitina," gwamnati ta danne masu sassaucin ra'ayi: a ranar 4 ga Yuni, 1842, ta ba da wata sanarwa ta yin watsi da fueros a cikin laifuffukan 'yan jarida; kuma a cikin watan Yuli Juan B. Morales, alkalin kotun koli kuma dan majalisa, an daure shi saboda wani labarin kan kungiyar sojoji da aka buga a shafukan Karni na sha tara.
Morales ya kasance yana bugawa a jaridar sa shahararrun jerin labaran sa na adawa da gwamnati "El Gallo Pitágorico."
Lokacin da Nicolás Bravo ya hau karagar mulki a watan Nuwamba na 1842, ya bar 'yan jaridu ba tare da tabbaci ba, amma gwamnatin sa a takaice take saboda a ranar 18 ga Disamba na waccan shekarar, kamar yadda aka tsara a cikin shirin San Luis Potosí, wani kwamitin zartarwa ta maye gurbin Majalisar. Babban jaridar da ke adawa da wannan gaskiyar ita ce Karni na sha tara tare da kyakkyawan sakamako: a farkon Mayu 1843, an kama Mariano Otero, Gómez Pedraza, Riva Palacio, da Lafragua da ake zargi da tayar da zaune tsaye. An tsare su ba tare da wata wata ba.
Koyaya, bayan yan watanni, Santa Anna aka kifar da shi kuma aka maye gurbinsa da Joaquín de Herrera, na matsakaiciyar ra'ayoyi. Wannan gwamnatin ta sami tallafi daga jaridu masu zuwa: Mai Kula da Tsarin Mulki, Unionungiyar Nationalasa, Mai Kare Dokokin Y Karni na sha tara.
A cikin 1845, wannan jaridar ta jamhuriya ta mayar da martani mai ƙarfi game da ra'ayin cewa Tagle da sauran masu ra'ayin mazan jiya sun ba da shawara ga ƙasar: komawa ga masarauta. Karni na sha tara (wanda aka ɗan maye gurbinsa da Tunawa da tarihi kuma ya canza a watan Maris na waccan shekarar 'Yan Republican, duk da cewa daga baya zata sake daukar sunan ta), El Espectador, la Reforma da Don Simplicio, satirical biweekly wanda Ignacio Ramírez, Guillermo Prieto da sauran samari masu sassaucin ra'ayi, suka jagoranci kungiyar masu adawa da mulkin mallaka, wanda wasu kananan takardu da wallafe-wallafe suka kara girma.
A shekara ta 1851 Karni na sha tara Ya zama wani ɓangare na Jam'iyyar Puro (mai sassaucin ra'ayi) - godiya ga sauyin lafazin kalmomi wanda Francisco Zarco ya bayyana - kuma ya gayyaci dukkan 'yan jaridu don su halarci tattaunawar da aka yi game da sauye-sauye ga ƙa'idar doka wacce ta kasance gabatar da Mariano Arista, tun lokacin da majalisar ta tattauna da manufofin ketare na kasar.
Ya kasance kamar wannan Karni na sha tara ya rikide zuwa adawa kuma ya sha fama da hare-hare daga Tsarin Mulki, jaridar hukuma, da Fata. Francisco Zarco, babban edita na Karni na sha tara an tsananta masa duk da kasancewarsa dan Majalisar.
An fara taƙaita rayuwar jaridar: a ranar 22 ga Satumba, 1852, aka buga wata doka da Arista ta buga don hana duk wani abu wanda kai tsaye ko a kaikaice ya fifita 'yan tawayen juyin juya halin Jalisco, ko suka a wata hanya, daga rubuta su a cikin jarida. zuwa ga hukuma. Karni na sha tara ya zama ba bu komai a wannan ranar da washegari kuma dole ne gwamnati ta gyara tare da bin sawun matakan nata. 'Yan jaridar lardin da babban birnin sun yi sharhi mai zafi da rashin daɗi game da lamarin.
Shekara guda bayan haka, a ranar 25 ga Afrilu, aka ba da Dokar Lares a kan 'yancin' yan jaridu, mafi zalunci da ƙasar ba ta taɓa sani ba, kuma tasirinsa ya kai duka: a lardin kawai jaridu ne na hukuma da Karni na sha tara an canza shi zuwa jarida mai sauƙi na sanarwa da labarai.
