Igama le Urhulumente waseGuarico Yachongwa nge-28 ka-Epreli ngo-1856, kwaye ivela kumlambo wegama elifanayo, umlambo owakheka kufutshane nelizwe laseCarabobo. Kwilwimi yamaNdiya aseCarib igama elithi "guárico" lithetha "i-cacique."
Umbuso wangoku waseGuarico ekuqaleni wawenziwe amaqela amathathu emveli: ii-Arawaks, iiCaribs kunye neeCiparicotos. Ngokufika kwabathunywa bevangeli baseSpain, amaIndiya alo mmandla afumana amasiko aseNtshona enxiba kunye nokutyala ikotoni, ngelixa abafazi bomthonyama befunda ukujikeleza.
Yile ndlela inkulungwane ye-XNUMX eyaqala ngayo ukuba nabantu ISan Juan de los Morros, eyasekwa ekuqaleni zezi ndwendwe zaseYurophu, ezathiya igama emva kolwalwa lwamatye olungumda wesixeko. Ezi ncopho zelitye lekalika, kunye nemithombo eshushu, zazisothusa kwaye zinika umdla kubahambi nakwizendalo ezinje ngoAlexander de Humboldt noJean-Baptiste Boussingault.
Kumazwe ayo nakwiindawo ezikufutshane, iziganeko ezahlukeneyo ezinje nge Imfazwe yase-Federal kunye neMfazwe ye-Independence. Ezinye iziganeko zembali ezenzeka kweli lizwe yaba kukuvukela i-Welser ngo-1795, ukufika kuka-Miranda ngo-1806, ukumiliselwa kuka-José Leonardo Chirinos ngo-1795 kunye no-Colinada ngo-1874, ngokuchasene norhulumente ka-Antonio Guzmán Blanco.
La isixeko somhadi Ekuqaleni yayiliziko lezopolitiko nelisebenza kwilizwe laseGuárico, kodwa ukusukela ngo-1934, iSan Juan yasekwa njengekomkhulu lommandla wase-llanera ngummiselo ka-General Juan Vicente Gómez Oku kufezekiswe ngesivumelwano phakathi kwezindlu zowiso-mthetho zaseGuárico naseAragua, apho bekukho ukutshintshiselana ngemimandla apho iGuárico yanika iAragua iidolophu zaseTaguay neBarbacoas, kwaye iAragua yasinikezela isixeko saseSan Juan de los Morros.
Namhlanje ilizwe laseGuárico kunye namazwe I-Apure kunye neBarinas, Yenza ummandla we-llanos kwaye wahlulwe waba ngumasipala abazimeleyo abali-15 kunye neeparishi ezingama-39.