#Apulum
- Alba Iulia — A first-rank municipality in Romania, capital of Alba county, situated in the historical region of Transylvania, on the banks of the Mureș River. The city holds a supreme national symbolic value, being the place where the Great Union of December 1, 1918 was officially proclaimed and where the Kings of Greater Romania were crowned in 1922. It houses the largest Vauban-style fortress in Southeastern Europe, named Alba Carolina.
- Apulian — Name given to a member of the Apuli Dacian tribe, an ethnic group historically mentioned in the region of the Apulum fortress (modern-day Alba Iulia); as an adjective, it refers to cultural, territorial, or archaeological elements specific to this Dacian tribe from central Transylvania.
- Apuli — An ancient Dacian population inhabiting central Transylvania, around the political and religious center of Apulum (modern-day Alba Iulia); these Dacians were mentioned in ancient sources (such as Ptolemy's maps) as a powerful tribe skilled in mining, metallurgy, and the extraction of gold and salt deposits.
- Apulum — The largest urban, political, and military center in Roman Dacia, developed on the site of modern-day Alba Iulia; the settlement was initially a castrum built by the 13th Legion Gemina, structurally evolving into two distinct cities (Municipium Apulense and Colonia Aurelia Apulensis) and becoming the residence of the governor of Dacia Apulensis province.