857

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| 8th century | 9th century | 10th century |
| 820s | 830s | 840s | 850 | 860s | 870s | 880s |
◄◄ | | 853 | 854 | 855 | 856 | 857 | 858 | 859 | 860 | 861 | | ►►

Heads of State · Nekrolog

857
Old Cologne Cathedral - reconstruction after August Essenwein
The Hildebold Cathedral is first mentioned in a document.
857 in other calendars
Armenian calendar 305/306 (turn of the year July)
Ethiopian calendar 849/850
Buddhist calendar 1400/01 (southern Buddhism); 1399/1400 (alternative calculation according to Buddha's Parinirvana )
Chinese calendar 59th (60th) cycle

Year of the Fire Ox丁丑 ( at the beginning of the year Fire Rat 丙子)

Chula Sakarat (Siam, Myanmar) / Dai calendar (Vietnam) 219/220 (turn of the year April)
Iranian calendar 235/236 (around March 21)
Islamic calendar 242/243 (April 29/30)
Jewish calendar 4617/18 (September 22/23)
Coptic calendar 573/574
Malayalam calendar 32/33
Roman calendar from urbe condita MDCX (1610)

Diocletian's era : 573/574 (New Year November)

Seleucid era Babylon: 1167/68 (turn of the year April)

Syria: 1168/69 (turn of the year October)

Spanish era 895
Vikram Sambat (Nepalese Calendar) 913/914 (turn of the year April)

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Michael III

religion

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Commons : 857  - Collection of pictures, videos and audio files