The Spanish are the first to colonize the Americans. what impact did they have upon their arrival

The Spanish colonization of the Americas began under the Crown of Castile and spearheaded by the Spanish conquistadors. The Americas were invaded and incorporated into the Spanish Empire, with the exception of Brazil, British North America, and some small regions in South America and the Caribbean. The crown created civil and religious structures to administer this vast territory. The main motivations for colonial expansion were profit and the spread of Catholicism through indigenous conversions.