Short answers, pulled from the story.
Roman forces defeated King Perseus at the conclusion of the Third Macedonian War in 168 BC. Following this victory, Rome abolished the Macedonian monarchy and divided the territory into four client republics.
Quintus Caecilius Metellus made Macedonia into Rome's fifth provincia after defeating Andriscus near Pydna in 148 BC. The date of the establishment of the province is autumn 148 BC as indicated by the epoch date of the provincial era.
Gnaeus Egnatius initiated the construction of the Via Egnatia sometime after 146 BC. This Roman road stretched from Dyrrhachium on the Adriatic coast to Byzantium and provided the main overland link between Rome and its domains in the Eastern Mediterranean.
The Scordisci largely supplanted the Dardanians as the most powerful group in the central Balkans and invaded Macedonia multiple times starting in 149 BC. They defeated Roman armies commanded by Decimus Junius Silanus Manlianus in 141 BC and Sextus Pompeius in 119 BC.
Tiberius converted Macedonia and Achaia into imperial provinces in AD 15 following complaints about corruption. Claudius made them both Senatorial provinces once more in AD 44 before portions were handed over to Thrace.