Sanarwar Samun 'Yancin Kan Amurka, wanda Majalisar ta amince da shi a ranar 4 ga Yuli, 1776 Kammalallen' yancin kan makwabtanmu na arewa, wanda aka amince da shi a yarjejeniyar Versailles a ranar 3 ga Satumba, 1783 wanda aka samu albarkacin taimako daga Faransa, wanda a yaƙi da Ingila ya taimaka wa Washington aiwatar da yakinta.
Hoton da aka saki na sabuwar al'umma ta wata ƙasa ce wacce ta 'yantar da kanta daga zartarwar sarakuna.
Enididdigar encyclopedic na adadi da yawa: Voltaire, wanda ke adawa da ƙiyayya, Montesquieu, wanda ya yi magana game da rabe-raben iko; Rosseau, tare da ra'ayoyinsa game da haƙƙoƙi da yanci na mutum da Diderot da D'Alambert, waɗanda suka ɗaukaka fifiko da ƙwarewar hankali.
Juyin Juya Halin Faransa (1789-1799) wanda ya soke gata, ya lalata ikon sarauta, majalisu da hukumomi, kuma ya mai da ikon coci mara amfani. Sanarwa game da Hakkokin ofan Adam da na Citizan ƙasa da Majalisar ituasa ta Faransa ta ayyana.
Mamayar Napoleon na sojojin Faransa waɗanda suka ɗauki manyan biranen Sifen a cikin 1808, wanda ya sa Carlos na IV ya ƙi goyon bayan ɗansa, basaraken Asturias, wanda ake kira Fernando VII. Napoleon bai amince da wannan ba kuma an ɗaure shi da mahaifinsa kuma ya yi watsi da kursiyin.
Labarin halin da ake ciki a Spain ya isa Mexico City a ranar 14 ga Yulin, 1808. Bayan kwana huɗu, majalisar gari ta New Spain, “a madadin ɗaukacin masarautar Spain” ta ba da ranar 19 ga Yuli, 1808, ga mataimakin Iturrigaray wata sanarwa tare da maki kamar haka: cewa ainihin murabus din baiyi aiki ba saboda an "dauke su da rikici"; wannan ikon ya kasance a ko'ina cikin masarautar kuma musamman a jikin da ke dauke da muryar jama'a "wanda zai rike ta don mayar da ita ga halattaccen magaji lokacin da (Spain) ta sami 'yanci daga sojojin kasashen waje" kuma cewa mataimakin shugaban ya ci gaba da kasancewa a kan mulki na dan lokaci . Oidores din sun nuna rashin amincewa ga wakilcin da mahukuntan suka dauka amma wadannan, banda ci gaba da abin da aka fada, sun gabatar da cewa wani kwamiti na manyan hukumomin garin zasu hadu su binciki lamarin (mataimakin shugaban kasa, oidores, archbishops, canons, prelates, masu bincike, da sauransu) wanda ya faru a ranar 9 ga watan Agusta.
Lauya Francisco Primo de Verdad y Ramos, amintacce na Majalisar Birni ya gabatar da bukatar kafa gwamnatin wucin gadi kuma ya ba da shawarar yin watsi da kwamitocin yankin. Oidores sun yi imani da akasin haka, amma duk sun amince Iturrigaray ya ci gaba da jagoranci, a matsayin mai mukamin Laftana ga Fernando VII, wanda duk ya rantse a ranar 15 ga Agusta.
A waccan lokacin ra'ayoyi biyu masu adawa da juna sun riga sun bayyana: Mutanen Spanish sun yi zargin cewa Hukumar Birni na son samun 'yanci kuma Creoles sun zaci cewa Audiencia na son ci gaba da biyayya ga Spain, har ma a karkashin Napoleon.
Wata safiya, rubutu mai zuwa ya bayyana akan bangon babban birnin:
Bude idanunku, ya yan Mexico, kuma kuyi amfani da irin wannan damar.Ya ku 'yan uwa, arziki ya tanadi yanci a hannunku; idan yanzu ba ku kawar da karkiyar mutanen Hispanomise ba, babu shakka za ku kasance.
Theungiyar sassaucin ra'ayi da za ta ba Mexico ingancinta a matsayin ƙasa mai cikakken iko ta fara.
