Short answers, pulled from the story.
Carinthia, known in Slovenian as Koroška, is a traditional region in northern Slovenia covering 478 square kilometers. It has no official administrative status within Slovenia because its boundaries reflect the historical Duchy of Carinthia rather than any current administrative division; the Carinthia Statistical Region established in 2005 covers a larger and differently defined area.
The 1919 Treaty of Saint-Germain allocated the southeasternmost portion of the former Duchy of Carinthia to the Kingdom of Serbs, Croats and Serbs. The Meža Valley, the area around Dravograd, and Jezersko were split off without a referendum. On the 10th of October 1920, voters in the adjacent Carinthian Plebiscite chose to remain with the newly founded First Austrian Republic.
When the German Instrument of Surrender came in May 1945, Yugoslav Partisans entered the region and killed numerous alleged collaborators during the Bleiburg repatriations. Mass graves have been documented around Dravograd (in Otiški Vrh, Selovec, Bukovska Vas, and Šentjanž) and around Prevalje (in Leše and Poljana).
The processing industry is the biggest employer. Metal Ravne, a steel mill specializing in alloy steel and machinery components, is a major operation. Five hydroelectric plants on the Carinthian stretch of the Drava River produce a combined capacity of about 60 megawatts. The lead and zinc mine and the lead smelter in Žerjav both closed in the 1990s.
Heavy sulfur dioxide emissions from the Šoštanj Power Plant and the iron works in Ravne have damaged up to 40% of trees in some parts of Slovenian Carinthia. The Meža Valley also suffered from centuries of lead and zinc ore extraction, leaving the lower areas polluted with lead, though the environmental situation has slowly improved since the zinc mine closed.
Notable people from Slovenian Carinthia include skier Tina Maze, tennis player Katarina Srebotnik, volleyball player Tine Urnaut, basketball player Boštjan Nachbar, and football player Robert Koren. The composer Hugo Wolf, the writer Prežihov Voranc, and the philosopher Renata Salecl also come from the region.