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715

Gregory II began his pontificate; his conflict with Byzantine emperor Leo III eventually led to the establishment of the

Gregory II began his pontificate; his conflict with Byzantine emperor Leo III eventually led to the establishment of the

685

The Picts defeated the Northumbrians at the Battle of Dun Nechtain, severely weakening the latter's power in northern Gr

The Picts defeated the Northumbrians at the Battle of Dun Nechtain, severely weakening the latter's power in northern Gr

621

Tang forces led by Li Shimin defeated and captured Dou Jiande at the Battle of Hulao in the civil war that followed the

Tang forces led by Li Shimin defeated and captured Dou Jiande at the Battle of Hulao in the civil war that followed the

313

Civil wars of the Tetrarchy: An outnumbered army led by Roman emperor Licinius defeated his rival Maximinus II's forces

Civil wars of the Tetrarchy: An outnumbered army led by Roman emperor Licinius defeated his rival Maximinus II's forces

224

The ancient Iranian Parthian Empire fell to the Sasanids after its forces were defeated at the Battle of Hormozdgan

The ancient Iranian Parthian Empire fell to the Sasanids after its forces were defeated at the Battle of Hormozdgan

69

After defeat by Vitellius' troops at Bedriacum, Roman emperor Otho killed himself

After defeat by Vitellius' troops at Bedriacum, Roman emperor Otho killed himself

43 BC

Forces led by Mark Antony fought the Battle of Mutina against those of Decimus Brutus, one of Julius Caesar's assassins

Forces led by Mark Antony fought the Battle of Mutina against those of Decimus Brutus, one of Julius Caesar's assassins

585 BC

According to the Greek historian Herodotus, a solar eclipse, accurately predicted by Thales of Miletus, abruptly ended t

According to the Greek historian Herodotus, a solar eclipse, accurately predicted by Thales of Miletus, abruptly ended t