Why is Spanish spoken in mexico

Mexico was a Spanish colony long before the pilgrims arrived to Massachusetts Bay. Mexico gained its independence on September 16 1810.

Spanish was brought to Mexico in the 16th century:

In 1519, Hẻnán Cortés' ships reached the Mexican coast at Yucatan. Mexico had been discovered by the Spanish just a year prior, and they were eager to settle it. Cortés was the one of Spanish conquistador, best remembered for conquering the Aztec empire in 1521 and claiming Mexico for Spain.

Explanation:

Note: A large number of languages are spoken in Mexico, with Spanish being the most popular one, and this is the language of 90% of all Mexican citizens. Mexico has the greatest number of speakers of Spanish in the world.