Franklin Mint – History of the US – Texas Independence – 1836 – 45mm – Proof Bronze Medal. Feb. 25 – Samuel Colt patents revolver. Mar. 2 – Texas declares its independence from Mexico. Mar. 6 – The Alamo defenders are massacred. Apr. 21 – Texans overwhelm the Mexicans in the Battle of San Jacinto. July 11 – Specie Circular direct government land to be sold for only gold or silver.