Eastern Rumelia or Eastern Roumelia was an administratively autonomous province in the Ottoman Empire from 1878 to 1908. It was under full Bulgarian control from 1885 on, when it willingly united with the widely autonomous Principality of Bulgaria after a bloodless revolution. Ethnic Bulgarians composed the absolute demographic majority within Eastern Rumelia. Its capital was Plovdiv. Today, Eastern Rumelia (the largest part of Northern Thrace) is part of Bulgaria.