Kievan Rus was a medieval state that existed from the late 9th to the mid-13th century in Eastern Europe. It encompassed territories that are now part of modern-day Ukraine, Belarus, and Russia. The symbol 🏰 represents the rich architectural heritage of Kievan Rus, which included numerous fortresses and castles. The flag 🇺🇦 signifies Ukraine, the country where the city of Kiev (the capital of Kievan Rus) is located.