How the Sofia–Skopje railway and the Deve Bair tunnel went from 1910 optimism and 1940s concrete to a 2020s EU‑backed comeback.

The Panagyurishte Treasure, a remarkable collection of Thracian gold artifacts discovered in 1949, reveals the artistic and cultural prowess of an ancient civilization.

From liberation in 1878 to the aftermath of World War II, Bulgaria's foreign policy was intricately shaped by its financial constraints, particularly its growing national debt and reliance on foreign loans, which dictated the nation's strategic alliances and diplomatic maneuvers.

Byzantine rule in Bulgaria, also known as Byzantine domination, occurred between 1018 and 1185 CE, after the fall of the First Bulgarian Empire.

The First Bulgarian Empire, founded in 681 CE, united Bulgars and Slavs, shaping a powerful medieval state in the Balkans.