Sci & Tech Chronology:
In the year 830 |
Tools
The Utrecht Psalter provides the oldest pictorial evidence of a crank handle for turning wheels in the West, nearly a thousand years after the Chinese use of such handles; the illustration shows a man sharpening a sword on a grindstone. There is some archaeological and written evidence that the Romans knew of the crank, but crank handles were not in regular use in Roman times except for hand mills. See also 350 Tools.
Wikipedia:
830 |
| Millennium: | 1st millennium |
|---|---|
| Centuries: | 8th century – 9th century – 10th century |
| Decades: | 800s 810s 820s – 830s – 840s 850s 860s |
| Years: | 827 828 829 – 830 – 831 832 833 |
| 830 by topic | |
| Politics | |
| State leaders – Sovereign states | |
| Birth and death categories | |
| Births – Deaths | |
| Establishment and disestablishment categories | |
| Establishments – Disestablishments | |
| Gregorian calendar | 830 DCCCXXX |
| Ab urbe condita | 1583 |
| Armenian calendar | 279 ԹՎ ՄՀԹ |
| Bahá'í calendar | -1014 – -1013 |
| Bengali calendar | 237 |
| Berber calendar | 1780 |
| Buddhist calendar | 1374 |
| Burmese calendar | 192 |
| Byzantine calendar | 6338 – 6339 |
| Chinese calendar | 己酉年十二月初三日 (3466/3526-12-3) — to —
庚戌年十二月十三日(3467/3527-12-13) |
| Coptic calendar | 546 – 547 |
| Ethiopian calendar | 822 – 823 |
| Hebrew calendar | 4590 – 4591 |
| Hindu calendars | |
| - Vikram Samvat | 885 – 886 |
| - Shaka Samvat | 752 – 753 |
| - Kali Yuga | 3931 – 3932 |
| Holocene calendar | 10830 |
| Iranian calendar | 208 – 209 |
| Islamic calendar | 214 – 215 |
| Japanese calendar | |
| Korean calendar | 3163 |
| Thai solar calendar | 1373 |
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830 |
 | Pepin I (king) |
| Year 807 (in Science & Technology) |
| Kawagoe (city, Japan) |
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 | 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 |
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