724
Houghton Mifflin Guide to Science & Technology:
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In the year 724
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.
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This article is about the year 724. For the number (and other uses), see 724 (number).
| Millennium: | 1st millennium |
|---|---|
| Centuries: | 7th century – 8th century – 9th century |
| Decades: | 690s 700s 710s – 720s – 730s 740s 750s |
| Years: | 721 722 723 – 724 – 725 726 727 |
| 724 by topic | |
| Politics | |
| State leaders – Sovereign states | |
| Birth and death categories | |
| Births – Deaths | |
| Establishment and disestablishment categories | |
| Establishments – Disestablishments | |
| 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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Wikimedia Commons has media related to: 724 |
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.
Events
By place
Asia
- Emperor Shōmu succeeds Empress Genshō on the throne of Japan.
- Umayyad caliph Yazid II ibn Abd al-Malik (720–724) is succeeded by Hisham ibn Abd al-Malik (724–743).
Mesoamerica
- K'ak' Tiliw Chan Yopaat becomes king of the Maya city of Quiriguá.
Births
Deaths
- Rotrude of Treves, Duchess of the Franks and wife of Charles Martel (b. 690)
- Tonyukuk, Turkic grand vizier and commander-in-chief (approximate date)
- Fogartach mac Néill, High King of Ireland
References
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Copyrights:
Houghton Mifflin Guide to Science & Technology
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.
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