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  Heraclius reign was marked by several military campaigns. The year Heraclius came to power, the empire was threatened on multiple frontiers.
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  The initial conflict lasted from 634 to 718, ending with the Second Arab Siege of Constantinople that halted the rapid expansion of the Arab Empire into Anatolia.
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  Harold II became the last English king to die in battle on English soil until Richard III was killed at the Battle of Bosworth Field.
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  A later tradition called him Beauclerc for his scholarly interests he could read Latin and put his learning to effective use
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  was an attempt by European leaders to reconquer the Holy Land from Saladin
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  During his reign, he conquered Italy and was crowned Imperator Augustus by Pope Leo III on 25 December 800.
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  After 300 years of division and fragmentation following the collapse of the Han dynasty in 220 A.D., China was once again unified under the Sui dynasty (581–618).