Slavs, invade the Balkan Peninsula, [123];

subject to the Avars, [124-37];

ravages of the, [125], [129];

made tributary by Constans II., [169];

besiege Thessalonica, [171]

Sophia. St., first building of, [27];

burnt in 410 a.d., [53];

burnt in the Nika riots, [77];

rebuilding of by Justinian, [107-9];

desecrated by the Turks, [349]