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EntityQ31701· pop 124

639

year

AI overview

I don't have enough context to write an accurate overview of "639." The single word "year" doesn't clarify what "639" refers to—whether it's a year in history, a code, a reference number, or something else entirely. Could you provide more information about what "639" is?

AI-generated from the Wikipedia summary — may contain errors.

Wikidata facts

Instance of: year
Part of: 630s
Followed by: 640
Follows: 638

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Commons category: 639
topic's main category: Category:639
point in time: 0639-01-01
has list: list of state leaders in 639
category for births in this time period: Category:639 births
category for deaths in this time period: Category:639 deaths

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Encyclopedic overview

The Muslim invasion of Egypt (639–642)

Year 639 (DCXXXIX) was a common year starting on Friday of the Julian calendar. The denomination 639 for this year has been used since the early medieval period, when the Anno Domini calendar era became the prevalent method in Europe for naming years.

Excerpted from Wikipedia’s “639” article, available under the CC BY-SA 4.0 licence.

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