The Number 999: Properties and MeaningsPrime Factors of 999=3x3x3x37.
999 is a 334-gonal Number.
999 is the emergency telephone number in Great Britain.
The Year 999 ADIn the year 999 AD-Medieval Europe: many people did not grow crops because they thought there was no need, due to the coming armageddon.
In the year 999 AD Leif Ericson returned to Norway carrying trade cargo of Walrus tusks and skins.
In the year 999 AD Brian Bóruma defeated Máel Mórda, king of Leinster, and Sitric Silkbeard, at Glen Máma, near Saggart, Co Dublin.(History of Ireland)
In the year 999 AD Turkish dynasties became the rulers of Transoxania, and area that covered much of what later became Uzbekistan, Turkmenistan and Tajikistan.
In the year 999 AD Gregory V, [Bruno] 1st German Pope, died.
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