Settled during the 1st millennium B.C. by  the Thracians
Conquered by the Romans in 45 C.E. to become later а part of the Byzantine Empire
Conquered by the Bulgarian Kingdom in the 9th century
Fell under the Ottomans in 1382
Capital of the Ottoman Empire’s European province (1382 – 1878)
In 1876 Russian forces pushed the Ottomans out of the city
Became the capital of Bulgaria in 1879