In naval battles, this empire's ships sprayed and ignited a sticky mixture of naphtha and bitumen   called Greek fire.
In naval battles, this empire's ships sprayed and ignited a sticky mixture of naphtha and bitumen   called Greek fire. Alexius the First reorganized this empire's military after it lost Anatolia to the  forces of Alp Arslan at the Battle of Manzikert. Johannes Grant uncovered enemy tunnels and   Giovanni Giustiniani [joos-tee-nee-AH-nee] defended the city walls during a siege of this empire's  capital, in which Hypatius had led a revolt of Blues and Greens in the Hippodrome. Name this  empire which suppressed the Nika Riots and fell in 1453 after Ottomans under Mehmed II captured  its capital, Constantinople.
In naval battles, this empire's ships sprayed and ignited a sticky mixture of naphtha and bitumen   called Greek fire.
Byzantine Empire [or Eastern Roman Empire; prompt on Roman Empire; do not accept  “Ottoman Empire”]