This marks the beginning of Paleolithic research in Slovenia.
The earliest signs of human settlement in present-day Slovenia were found in Hell Cave in the Loza Woods near Orehek in Inner Carniola, where two stone tools approximately 250,000 years old were recovered.
In the late 10th and beginning of the 11th century, primarily because of the Hungarian threat, the south-eastern border region of the German Empire was organized into so called "marks", that became the core of the development of the historical Slovenian lands, the Carniola, the Styria and the western Goriška/Gorizia.
The consolidation and formation of the historical Slovenian lands took place in a long period between 11th and 14th century being led by a number of important feudal families such as the Dukes of Spannheim, the Counts of Gorizia, the Counts of Celje and finally the House of Habsburg.
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.