Spanish for September 16, and is the Independence Day of Mexico. September 16 is the 259th day of the year (260th in leap years). ... An Independence Day is an annual celebration commemorating the anniversary of a nations assumption of independent statehood, usually after ceasing to be a colony of another state. ... The United Mexican States or Mexico (Spanish: Estados Unidos Mexicanos or México; regarding the use of the variant spelling Méjico, see section The name below) is a country located in North America, bordered to the north by the United States of America, to the southeast by Guatemala and Belize, to...