724

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Tools

Buddhist monk I-Xing and Chinese engineer Lyang Lingdzan build a water clock that has an escapement, the device that causes a clock to tick. The escapement opens and closes a valve, making the flow of water maintain a more constant rate. The clockwork is used to power various astronomical devices rather than to indicate the hour. See also 500 Tools; 1088 Tools.


Millennium: 1st millennium
Centuries: 7th century8th century9th century
Decades: 690s  700s  710s  – 720s –  730s  740s  750s
Years: 721 722 723724725 726 727
724 by topic
Politics
State leaders – Sovereign states
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Establishments – Disestablishments
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724 in other calendars
Gregorian calendar 724
DCCXXIV
Ab urbe condita 1477
Armenian calendar 173
ԹՎ ՃՀԳ
Assyrian calendar 5474
Bahá'í calendar -1120 – -1119
Bengali calendar 131
Berber calendar 1674
English Regnal year N/A
Buddhist calendar 1268
Burmese calendar 86
Byzantine calendar 6232 – 6233
Chinese calendar 癸亥年十二月初一日
(3360/3420-12-1)
— to —
甲子年十二月十一日
(3361/3421-12-11)
Coptic calendar 440 – 441
Ethiopian calendar 716 – 717
Hebrew calendar 4484 – 4485
Hindu calendars
 - Bikram Samwat 780 – 781
 - Shaka Samvat 646 – 647
 - Kali Yuga 3825 – 3826
Holocene calendar 10724
Iranian calendar 102 – 103
Islamic calendar 105 – 106
Japanese calendar
Korean calendar 3057
Minguo calendar 1188 before ROC
民前1188年
Thai solar calendar 1267
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Year 724 (DCCXXIV) was a leap year starting on Saturday (link will display the full calendar) of the Julian calendar. The denomination 724 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.

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Balsas (river)
Year 976 (in Science & Technology)
Karun (river of western Iran)
Om (river)
Wei He (river of central China)