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680

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680

200–700Central America [statistics and demography]The Zapotec site of Monte Albán in Central America is at its peak in this period. It may have had 30,000 or more inhabitants. It is the centre of a complex of public buildings, temples, and dwellings that cover 40 sq km/15 sq mi.
680Arab Caliphate [wars]Following the death of the caliph Muawiya, a war of succession once again breaks out among the Arabs. Husein, a son of the murdered 4th caliph, Ali (ibn Abi Talib), responds to an appeal to seize the leadership but is to be defeated and killed (at Karbala in modern Iraq) by supporters of Muawiya's son Yazid, who becomes caliph. Husein is regarded as a martyr by those who believe that the caliphate can only rightly be held by a descendant of the Islamic prophet Muhammad, and they break away to form the minority Shiite movement of Islam.
680Arab Caliphate, Syria [births and deaths]Mu'awiyah I (also Moawiyah), caliph 661–80, founder of the Umayyad dynasty, who assumed the caliphate after the assassination of Ali (ibn Abi Talib), who reunified the Arab empire and transferred the capital to Damascus, dies in Damascus (c. 78).
c. 680India [maths]Indian mathematicians develop what is now known as the Hindu-Arabic decimal place–value system. Using a multiplicative system to base ten, and employing the number zero, this becomes the basis of the modern Western number system.
17 November 680Northumbria [births and deaths]St Hilda of Whitby, one of the leading abbesses of Anglo-Saxon England, founder of Whitby Abbey, dies in Whitby, Northumbria, England (c. 66).


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The firm has entered into a long term lease at 680 Washington Boulevard.
For more information, contact: Na'eem (+27 83 680 5257/83 680 5257).
Jeron's Provider[R] 680 Nurse Call System is a comprehensive system that integrates digital duplex intercoms, infrared locators, personal mobile masters, a touchscreen monitor, PBX interfaces, PCS wireless phones and pocket pagers.
 
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