Franklin Mint – History of the US – US Occupies Mexico City – 1847 – 45mm – Proof Bronze Medal. Feb. 22-23 – General Santa Anna defeated by General Taylor at Buena Vista . Mar. 3 – Congress authorizes postage stamps. Mar. 9 – General Winfield Scott lands at Vera Cruz for advance on Mexican capital. July 24 – Brigham Young and the Mormons reach Utah.Sept. 14 – General Scott takes Mexico City.