Es que se utilizaban las monedas que se acuñaban en la nueva España

(Véase la explicación abajo para mayores detalles/See explanation below for further details)

Explanation:

La mayor parte de las monedas acuñadas en el Virreinato de la Nueva España, especialmente durante los reinados borbónicos, eran destinados a la exportación y en menor proporción, al mantenimiento de estructuras militares en todo el territorio virreinal. (A great portion of the minted coins in the Viceroyalship of New Spain, especially during the Bourbon rule, were destined for export and, to a lesser extent, the maintenance of millitary structures throughout territory).

these conditions long with a short growing season made farming difficult.

explanation:

the north has a climate of warm summers and snowy cold winters. the terrain is rocky, hilly, and not good for farming.

the first historical instance of china engaging in internationalism was during the han dynasty.[1] at the start of the han dynasty, the huns in the north were attacking the frontiers of han and trying to obtain riches. emperor wu of han wanted to gain an alliance with a country called dayuezhi so the two countries could join together and fight against the huns.[2] to obtain this alliance, emperor wu sent zhang qian to the west to establish economic and cultural connections.[2] history records that during the han dynasty there were four primary avenues of contact between china and europe. they included the northern land route, the central land route, the southern sea route, and the far southern sea route.[1] the most famous of these routes is the central land route, or the classical silk road, comprising a network of roads stretching from northwest china to the ports of syria and the black sea, which passed through the oasis of the turkestans and northern persia.[1] the silk road was significant for chinese emperors because it provided dominance over central asia by developing resources and provided new markets for the export of china's most valuable resources.[1]