For the same reasons other European kingdoms did...to increase revenue, land holdings, prestige. Also, for Spain, "converting" more people (even at the point of a sword or gun) to Catholic Christianity would make Spain look better in the eyes of the Pope and therefore the Roman Catholic Church.
As most of Europe was Catholic in the early 1500s, this was a very big deal. Also keep in mind Spain as a unified country really didn't exist until 1492, when the Spanish forces kicked the Moors out of Spain forever. At this point Spain was a relatively weak and poor country, compared to the Holy Roman Empire or France.
So, how to get rich, big, and powerful? Colonize, by any means necessary. That Mexico is so corrupt and relatively poor is a legacy of the brutality of Spanish colonialism and oppression.
Manacor, Mallorca in the Majorcan islands of Spain.
I think its Spain.......Thats what I foundIts Spain Its Spain Its Spain ITS SPAIN OK
Columbus started his voyage in Spain
Spain
She lives in Spain.
Spain's origin is "Kingdom of Spain"
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It touches France and Spain. Southwest France and northwest Spain to be exact.
Seville, Spain Seville, Spain Seville, Spain
New Spain never "Retook" Spain. The question implies that New Spain conquered Spain; it never happened.
Spain is about as Spanish as it is possible to get.
Spain