The history of Slovenia chronicles the period of the Slovenian territory from the 5th century BC to the present. In the Early Bronze Age, Proto-Illyrian tribes settled an area stretching from present-day Albania to the city of Trieste. The Slovenian territory was part of the Roman Empire, and it was devastated by the Migration Period's incursions during late Antiquity and the Early Middle Ages. The main route from the Pannonian plain to Italy ran through present-day Slovenia. Alpine Slavs, ancestors of modern-day Slovenians, settled the area in the late 6th Century AD. The Holy Roman Empire controlled the land for nearly 1,000 years, and between the mid-14th century and 1918 most of Slovenia was under Habsburg rule. In 1918, Slovenes formed Yugoslavia along with Serbs and Croats, while a minority came under Italy. The state of Slovenia was created in 1945 as part of federal Yugoslavia. Slovenia gained its independence from Yugoslavia in June 1991, and is today a member of the European Union and NATO. Prehistory to Slavic settlement Prehistory During the last glacial period, present-day Slovenia was inhabited by Neanderthals; the best-known Neanderthal archaeological site in Slovenia is a cave close to the village of Šebrelje near Cerkno, where the Divje Babe Flute, the oldest known musical instrument in the world, was found in 1995. The world's oldest securely dated wooden wheel and axle was found near the Ljubljana Marsh in 2002. In the transition period between the Bronze Age to the Iron Age, the Urnfield culture flourished. Numerous archeological remains dating from the Hallstatt period have been found in Slovenia, with important settlements in Most na Soči, Vače, and Šentvid pri Stični. Novo Mesto in Lower Carniola, one of the most important archaeological sites of the Hallstatt culture, has been nicknamed the "City of Situlas" after numerous situlas found in the area. Ancient Celts and Romans In the Iron Age, present-day Slovenia was inhabited by Illyrian and Celtic tribes until the 1st century BC, when the Romans conquered the region establishing the provinces of Pannonia and Noricum. What is now western Slovenia was included directly under Roman Italia as part of the X region Venetia et Histria. Important Roman towns located in present-day Slovenia included Emona, Celeia and Poetovio. Other important settlements were Nauportus, Neviodunum, Haliaetum, Atrans, and Stridon. During the Migration Period, the region suffered invasions of many barbarian armies, due to its strategic position as