lack of action in dealing with the city's pollution, which has worsened since 2017, contributing to around 1300 deaths annually. History Origins The rocky promontory on which stands the Fortress was the first site to be settled in Skopje. The earliest vestiges of human occupation found on this site date from the Chalcolithic (4th millennium BC). Although the Chalcolithic settlement must have been of some significance, it declined during the Bronze Age. Archeological research suggest that the settlement always belonged to a same culture, which progressively evolved thanks to contacts with Balkan and Danube cultures, and later with the Aegean. The locality eventually disappeared during the Iron Age when Scupi emerged. It was on Zajčev Rid hill, some west of the fortress promontory. At the centre of the Balkan peninsula and on the road between Danube and Aegean Sea, it was a prosperous locality, although its history is not well known. The earliest people in Skopje Valley were probably the Triballi. Later the area was populated by the Paionians. Scupi was originally a Paionian settlement, but it became afterwards Dardanian town. Dardanians, who lived in present-day Kosovo, invaded the region around Skopje during the 3rd century BC. Scupi, the ancient name for Skopje, became the capital of Dardania, which extended from Naissus to Bylazora in the second century BC. The Dardanians had remained independent after the Roman conquest of Macedon, and it seems most likely that Dardania lost independence in 28 BC. Roman Scupi Roman expansion east brought Scupi under Roman rule as a colony of legionnaires, mainly veterans of the Legio VII Claudia in the time of Domitian (81–96 AD). However, several legions from the Roman province of Macedonia of Crassus' army may already have been stationed in there around 29–28 BC, before the official imperial command was instituted. The first mention of the city was made at that period by Livy, who died in 17 AD. Scupi first served as a military base to maintain peace in the region and was officially named "Colonia Flavia Scupinorum", Flavia being the name of the emperor's dynasty. Shortly afterwards it became part of the province of Moesia during Augustus's rule. After the division of the province by Domitian in 86 AD, Scupi was elevated to colonial status, and became a seat of government within the new province of Moesia Superior. The district called Dardania (within Moesia Superior) was formed into a