670s
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Events
- Pippin the Middle secures his power in Austrasia .
- In 674 a long-term siege of Constantinople by the Arabs begins .
- The Greek fire is invented by Kallinikos . In 678 the traditional first operation against the Arab fleet takes place, which then has to break off the siege of Constantinople.
- Khan Asparuch founds a Bulgarian Empire on the Lower Danube in 679 . Originally at home in southern Russia, the Bulgarians took advantage of the weakening of the Byzantine Empire from the Arab attack on Constantinople to cross the Danube in Moesia .
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