In the years of 1702/1704, it is had as first land assignee in the Cariri the sesmeiro river-grandense (North), Manuel Rodrigues Ayrosa. Its ownership was placed in the soil Is Jose, in the called valley of Lagoon of the Ayrosa, almost simultaneously enters the cities that later would be called of Crato and Juazeiro (Small farm Is Jose) In following periods, however, arrives at the region other tamers of which if they detach Colonel Antonio Mendes Lobato and Gil de Miranda, who much would come to contribute in favor of the advances of the settling. From 1714, when the pernambucanos and bahian investors initiate its descendings, forming contingent more numerous, the immense Valley of the Cariri passes for successive divisions, in highly productive povoamento fast e. Where the settling of this religion if gave with the creation of cattle and the culture of the sugar sugar cane and one I begin of mining and the exploration and dizimao of the natives (Kariris indians) where today are the cities of Old mission, Crato and Barbalha. It was exactly in land search to explore that for 1830 return if they had installed in the Salamanca small farm (today Barbalha) some Portuguese and its descendants, between them Miguel Enrique Xavier de Oliveira and a brother of not refined name in this research, where the same ones were trying to acquire sesmarias donated for the Empire.
Without getting much success in the acquisition of the desired Sesmaria, Mr. Miguel Enrique Xavier de Oliveira left its brother in the Salamanca small farm and came with the wife and some slaves to take ownership of a great situated land property the edges of the river 50 Jenipapeiro about km of its old dwelling. In this property, Miguel Xavier treated to create cattle and to cultivate cassava and sugar cane of sugar, prospering and if becoming important figure at this time, therefore, conquered the heading of Provincial Member of the house of representatives being elect in 1842 acting in the Real Village of the Crato.