Spain is a small country but in the past I get to have conquered many foreign colonies, came to have conquered all of South America except Brazil was Portuguese, then questions reigns Spain was losing all its territories except Spain. In Latin American countries rebelled against the Spaniards because they were trying not great, but the settlers kept our Idoma, so the Spanish is so used. Now it is the second most spoken language after Chinese. To give you an idea the 90% who speak Spanish are Latin Americans