Answer: Spain or Spanish crown.
Explanation: Domination of this region started in 1492. From then on the colonization project of Spain developed. It is important to know that, Spain (together with Portugal) were the only European monarchies that were authorized to colonize (i.e. spread the Catholic Christianity) from the very hands of popes. It means that Spain (together with Portugal) had a monopoly to impose their power and faith in colonized areas. Colonization was also a linguistic affair ...Spain imposed in this part of the world Spanish language as the official language.