• The official name of Mexico is Estados Únidos Mexicanos (United Mexican States).[4]
    • A Mexican tamale called the zacahuil is three feet long and weighs about 150 pounds.[3]
    • The largest wildcat in North America is the jaguar, which can be found in Mexico's southern jungles.[3]
    • The first printing press in North America was used in Mexico City in 1539.[3]
    • The National University of Mexico was founded in 1551 by Charles V of Spain and is the oldest university in North America.  
    • Millions of monarch butterflies migrate to Mexico every year from the U.S. and Canada, though logging operations are rapidly destroying their habitat.[4]
    • The border between Mexico and the United States is the second largest border in the world (only the U.S.-Canadian border is longer).[3]\\
    ·         Mexico City is built over the ruins of a great Aztec city, Tenochtitlán. Because it is built on a lake, Mexico is sinking at a rate of 6 to 8 inches a year as pumps draw water out for the city’s growing population.[6]
    ·         The red poinsettia (which the Aztecs called cuetlaxochitl) originated in Mexico and is named after Joel Roberts Poinsett, the first United States ambassador to Mexico (in the 1820s).[4]
    ·         Mexico remained under Spanish control for nearly 300 years until the Mexican people, led by a priest named Father Hidalgo, rose up against the Spanish on September 16, 1810. Hidalgo is widely considered the father of modern Mexico, and Mexican Independence is celebrated on September 15-16. [6]
    http://www.factretriever.com/mexico-facts