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Every day in Bulgarian history holds a story worth remembering. In this recurring series, On This Day in Bulgaria, we look back at notable events, decisions, and milestones that happened on this date across the country’s history.

August 28, 1877 — The Grip on Pleven Tightens

Russian and Bulgarian forces maintained their encirclement of Pleven as General Osman Pasha’s garrison grew increasingly short of supplies. The siege was entering its most gruelling phase — a slow war of attrition that tested the endurance of defenders and attackers alike. Bulgarian militia units guarding the outer perimeter played a crucial role in preventing any Ottoman relief column from reaching the besieged city.

August 28, 1943 — The Death of Tsar Boris III

Tsar Boris III died in Sofia after a sudden collapse, just weeks after a tense meeting with Adolf Hitler at his Wolf’s Lair headquarters. His death — officially attributed to heart failure but the subject of historical debate — left Bulgaria without its head of state at the most critical moment of the war. A regency council was formed to govern in the name of the six-year-old Tsar Simeon II, as the country navigated the final year of the conflict without its experienced wartime monarch.

Explore more of Bulgaria’s story on Bronicable, including our Bulgaria From Above series and our guides to the best of Bulgaria.