years, many other valleys developed a slightly differentiated dialect compared to the Tyrolean. The Ladin language also has no uniform language, so every valley also has a slight difference in Ladinia. Heraldry Although the details of the arms of Tyrol have changed over the centuries, one feature has remained more-or-less constant: argent, an eagle displayed gules, armed (and sometimes crowned) or. Since 1983, the Province of South Tyrol has its own coat of arms. It is very similar to the coat of arms of the State of Tyrol. The Province wanted to emphasize the historical commonality of the countries. The Province of Trento received its coat of arms in 1340 and refers to the prince-bishopric of Trento. The former County of Tyrol had a uniform coat of arms, which was slightly changed over the centuries. History Prehistory The earliest archaeological records of human settlement in Tyrol have been found in the Tischofer Cave. They date from the Palaeolithic, about 28,000–27,000 BP. The same cave has also yielded evidence of human occupation during the Bronze Age (very roughly, 4000–3000 BP (2000–1000 BC)). In 1991, the mummified remains of a man who had died around 3300–3100 BC were discovered in a glacier in the Ötztal Alps, in Tyrol. Researchers have called him Ötzi (and also other names, including "The Iceman"). He lived during the Chalcolithic or Copper Age, after man had learned how to exploit copper but before man had learned how to make bronze. His body and belongings were very well-preserved, and have been subjected to detailed scientific study. They are preserved in the South Tyrol Museum of Archaeology, Bolzano, South Tyrol, Italy. There is evidence that Tyrol was a center for copper mining in the 4th millennium BC; for example, at Brixlegg. There is also evidence of the Urnfield culture (roughly 1300–750 BC). Evidence of the La Tène culture (roughly 450–100 BC, during the Iron Age) has also been found; as has evidence of the Fritzens-Sanzeno culture from about the same period. Toward the end of that time, Tyrol began to be noted in Roman written records. The inhabitants may have been Illyrians, in the process of being displaced by Celts (perhaps themselves displaced from Noricum by Slavs). There are also indications that Adriatic Veneti may have been present in the south of the region. The Romans called them Rhaetians; although it is not clear whether that then meant a