Updated October 25, 2016. Definition: A budget deficit is when spending is greater than the revenue received for that year. That's known as deficit spending. The national debt is the accumulation of each year's deficit. When revenue exceeds spending, that creates a budget surplus.
Quick Answer. Mexico gained independence from Spain on Sept. 27, 1821. On Sept. 16, 1810, Miguel Hidalgo y Costilla declared independence from Spain by issuing the Grito de Dolores and launched the Mexican War of Independence. The war ended with the signing of the Treaty of Cordoba on Aug. 24, 1821.
On March 2, 1836, Texians declared their independence from Mexico. The Texas Revolution ended on April 21, 1836, when Santa Anna was taken prisoner following the Battle of San Jacinto. Although Texas then governed itself as the Republic of Texas, Mexico refused to recognize its independence.