Declaration of Independence of the United States, yovomerezedwa ndi Congress pa Julayi 4, 1776 Kutsirizidwa kwa ufulu wa oyandikana nawo akumpoto, wodziwika mu Pangano la Versailles pa Seputembara 3, 1783 lomwe lidakwaniritsidwa chifukwa cha thandizo lochokera ku France, lomwe pomenya nkhondo ndi England lidathandizira Washington kuti ichite nkhondoyo.
Chithunzi chomwe chinatulutsidwa cha mtundu watsopanowu chinali cha dziko lomwe ladzimasula kuumunthu wamfumu.
Kufufuza kwa maumboni a anthu angapo: Voltaire, yemwe anali wotsutsana ndi ulamuliro wankhanza, Montesquieu, yemwe amalankhula zakugawana mphamvu; Rosseau, ndi malingaliro ake okhudzana ndi ufulu ndi kumasuka kwa munthu payekha komanso Diderot ndi D'Alambert, omwe adakweza kufunikira komanso luso.
French Revolution (1789-1799) yomwe idathetsa mwayi, kuwononga mphamvu zachifumu, nyumba zamalamulo ndi mabungwe, ndikupanga mphamvu yamatchalitchi kukhala yopanda ntchito. Kulengeza kwa Ufulu wa Munthu ndi Nzika kulengezedwa ndi Constituent Assembly of France.
Kuukira kwa Napoleon kwa asitikali aku France omwe adalanda mizinda yofunika kwambiri ku Spain mu 1808, zomwe zidapangitsa Carlos IV kusiya udindo wake mokomera mwana wake, kalonga wa Asturias, wotchedwa Fernando VII. Wachiwiriyu sanazindikiridwe ndi Napoleon ndipo onse awiri ndi abambo ake adamangidwa ndipo adayenera kusiya mpando wachifumu.
Mbiri ya zomwe zidachitika ku Spain idafika ku Mexico City pa Julayi 14, 1808. Patatha masiku anayi, khonsolo yamzinda wa New Spain, "yoyimira ufumu wonse waku Spain" idapereka chigamulo pa Julayi 19, 1808, kwa wolowa m'malo Mawu a Iturrigaray ndi mfundo zotsatirazi: kuti kusiya ntchito kwenikweni kunalibe chifukwa "anatengedwa ndi chiwawa"; kuti ulamuliro udakhazikika muufumu wonse komanso makamaka m'matupi omwe anali ndi mawu pagulu "omwe angawasunge kuti abwezeretse olowa m'malo mwawo (Spain) atapezeka wopanda zida zakunja" komanso kuti wolowayo ayenera kukhalabe wamphamvu . Oidores adatsutsa chiwonetsero chomwe ma regidores adachita koma izi, kupatula pakukhazikitsa zomwe zanenedwa, adapempha bungwe la akuluakulu aboma mzindawo kuti likambirane nkhaniyi (viceroy, oidores, archbishops, canons, prelates, inquisitors, etc.) zomwe zidachitika pa Ogasiti 9.
Woyimira milandu Francisco Primo de Verdad y Ramos, trasti wa City Council adalimbikitsa kufunikira kokhazikitsa boma kwakanthawi ndipo adati asanyalanyaze mabungwe azipani. Oidores adaganiza mosiyana, koma onse adagwirizana kuti Iturrigaray apitilize kutsogolera, ngati lieutenant wa Fernando VII, yemwe onse adalumbira kuti adzamvera pa Ogasiti 15.
Pofika nthawiyo malingaliro awiri otsutsanawo anali atakwaniritsidwa kale: aku Spain akuganiza kuti City Council ikufuna ufulu ndipo a Creole amaganiza kuti Audiencia ikufuna kukhalabe pansi pa Spain, ngakhale pansi pa Napoleon.
Mmawa wina, zolemba zotsatirazi zidalembedwa pamakoma a likulu:
Tsegulani maso anu, anthu aku Mexico, ndipo mugwiritse ntchito mwayi wopezekapo.Wokondedwa anzathu, chuma chakupatsani ufulu mmanja mwanu;
Gulu la libertarian lomwe lingapatse Mexico kukhala dziko loyima palokha lidayamba.
