of the Akan peoples. Called nkontim, swastikas could be found on Ashanti gold weights and clothing. Americas The swastika has been used by multiple Indigenous groups, including the Hopi, Navajo, and Tlingit. Swastikas were founds on pottery from the Mississippi valley and on copper objects in the Hopewell Mounds in Ross County, Ohio. It is a Navajo symbol for good luck, also translated to "whirling log". In the 20th century, traders encouraged Native American artists to use the symbol in their crafts, and it was used by the US Army 45th Infantry Division, an all-Native American division. The symbol lost popularity in the 1930s due to its associations with Nazi Germany. In 1940, partially due to government encouragement, community leaders from several different Native American tribes made a statement promising to no longer use the symbol. However, the symbol has continued to be used by Native American groups, both in reference to the original symbol and as a memorial to the 45th Division, despite external objections to its use. The symbol was used on state road signs in Arizona from the 1920s until the 1940s. Early 20th century In the Western world, the symbol experienced a resurgence following the archaeological work in the late 19th century of Heinrich Schliemann, who discovered the symbol in the site of ancient Troy and associated it with the ancient migrations of Proto-Indo-Europeans, whose proto-language was not coincidentally termed "Proto-Indo-Germanic" by German language historians. He connected it with similar shapes found on ancient pots in Germany, and theorised that the swastika was a "significant religious symbol of our remote ancestors", linking it to ancient Teutons, Greeks of the time of Homer and Indians of the Vedic era. By the early 20th century, it was used worldwide and was regarded as a symbol of good luck and success. Schliemann's work soon became intertwined with the political völkisch movements, which used the swastika as a symbol for the "Aryan race"a concept that theorists such as Alfred Rosenberg equated with a Nordic master race originating in northern Europe. Since its adoption by the Nazi Party of Adolf Hitler, the swastika has been associated with Nazism, fascism, racism in its white supremacy form, the Axis powers in World War II, and the Holocaust in much of the West. The swastika remains a core symbol of neo-Nazi groups. The Benedictine choir school at Lambach Abbey, Upper Austria, which Hitler attended