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665

 
Sci & Tech Chronology: In the year 665
 

Mathematics

Brahmagupta writes Khandakhadyaka, primarily a work concerning astronomy. It also contains a method for interpolation that is used to compute the values of the sine function. See also 628 Mathematics.


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Wikipedia: 665
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Centuries: 6th century · 7th century · 8th century
Decades: 630s 640s 650s 660s 670s 680s 690s
Years: 662 663 664 665 666 667 668
665 by topic
Politics
State leaders - Sovereign states
Birth and death categories
Births - Deaths
Establishment and disestablishment categories
Establishments - Disestablishments
665 in other calendars
Gregorian calendar 665
DCLXV
Ab urbe condita 1418
Armenian calendar 114
ԹՎ ՃԺԴ
Bahá'í calendar -1179 – -1178
Berber calendar 1615
Buddhist calendar 1209
Burmese calendar 27
Byzantine calendar 6173 – 6174
Chinese calendar 甲子年十二月初十日
(3301/3361-12-10)
— to —
乙丑年十一月十九日
(3302/3362-11-19)
Coptic calendar 381 – 382
Ethiopian calendar 657 – 658
Hebrew calendar 4425 – 4426
Hindu calendars
 - Vikram Samvat 720 – 721
 - Shaka Samvat 587 – 588
 - Kali Yuga 3766 – 3767
Holocene calendar 10665
Iranian calendar 43 – 44
Islamic calendar 44 – 45
Japanese calendar
Korean calendar 2998
Thai solar calendar 1208


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Europe

Asia

  • The city of Seongnam is renamed Hansanju.

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Copyrights:

Sci & Tech Chronology. History of Science and Technology, edited by Bryan Bunch and Alexander Hellemans. Copyright © 2004 by Houghton Mifflin Company. Published by Houghton Mifflin Company. All rights reserved.  Read more
Wikipedia. This article is licensed under the GNU Free Documentation License. It uses material from the Wikipedia article "665" Read more