Florida Montana portal1950s portalUnited States portalHistory portal This category is for topics specifically related to the year 1956 in the U.S. state of Montana. 19511952195319541955195619571958195919601961 1900s1910s1920s1930s1940s1950s1960s1970s1980s1990s2000s Subcategories This category has the following 3 subcategories, out of 3 total. / 1956 establishments in Montana (2 P)E 1956 Montana elections (3 P)S 1956 in sports in Montana (2 P)