This about the past such as when dinosaurs roamed.
Triassic and Jurrasic are two of those periods
Answer:
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 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 through resource extraction[1] and the spread of Catholicism through indigenous conversions.
I believe imperialism because it means gaining on one country's power