Year
The world in 866
In 866 the atlas holds 237 states standing across 5 regions. 6 things began that year - County of Flanders, Scandinavian York and Siege of Ragusa among them - and 1 ended; 2 people were born and 2 died.
Only what Wikidata dates to the year is counted here; a thing dated to its decade is on the 860s page, and to its century on the 9th century.
What began in 866
By kind, the best known first; a war or a state is listed in the year it began.
States 3
- County of Flanders · state · 866 – 1797
- Scandinavian York · state · 866 – 954
- Ziyadid dynasty · state · 866 – 1138
Wars and battles 2
- Siege of Ragusa · battle · 866 – 868
- Battle of Brissarthe · battle · 866
Unrest and atrocity 1
- Kharijite Rebellions · unrest · 866 – 896
What ended in 866
States that fell or were replaced, and wars and other things that ran past the year they began.
Wars and battles 1
- Abbasid civil war · war · 865 – 866
Born and died
By how many Wikipedias write about them.
Born in 866 2
- Leo VI the Wise · composer · 866 – 912
- Carloman II · politician · 866 – 884
Died in 866 2
- Al-Musta'in · politician · 834 – 866
- Ordoño I of Asturias · ruler · 821 – 866
Standing in 866
The states the atlas holds as standing that year, by region, the best known first, with who held the highest office where the record dates it.
Europe109 states
- France · 481 – present
- Denmark · 800 – present · Horik II, Monarch of Denmark since 854
- San Marino · 301 – present
- Vikings · 793 – 1332
- Goths · 100 – 1475
- Hungarians · 840 – 894 · Álmos, Grand Prince of the Hungarians since 850
- Republic of Venice · 697 – 1797 · Orso I Participazio, Doge of Venice since 864
- Papal States · 754 – 1870 · Nicholas I, Pope since 858
- Kingdom of Scotland · 843 – 1707 · Causantín mac Cináeda, Monarch of Scotland since 862
- Kingdom of Wessex · 519 – 927
and 99 more; every state of Europe.
Middle East and North Africa32 states
- Byzantine Empire · 285 – 1453 · Michael III, Byzantine emperor since 842
- Abbasid Caliphate · 750 – 1258 · Al-Mu'tazz, Abbasid caliph since 866
- Rhodes · 188 BCE – 1249 CE
- Persian Empire · 550 BCE – 1979 CE
- Kingdom of Aksum · 401 BCE – 960 CE
- Ghana Empire · 100 – 1200
- Umayyad state of Córdoba · 756 – 929 · Muhammad I of Córdoba, emir of Cordoba since 852
- Aghlabid dynasty · 800 – 909 · Muhammad II of Ifriqiya, Emir of Ifriqiya since 864
- Idrisid dynasty · 788 – 974 · Yahya ibn Yahya, sultan since 864
- Tahirid dynasty · 821 – 873 · Muhammad ibn Tahir, wali of Khorasan since 862
and 22 more; every state of Middle East and North Africa.
South Asia37 states
- Tibetans · 850 – 1259
- Chola dynasty · 300 BCE – 1279 CE · Vijayalaya Chola, Chola king since 848
- Kara-Khanid Khanate · 840 – 1212 · Bilge Kul Qadir Khan, khan since 840
- Saffarid dynasty · 861 – 1003 · Ya'qub ibn al-Layth al-Saffar, Amir of the Saffarid dynasty since 861
- Pala Empire · 750 – 1174 · Shurapala I, emperor since 854 and Gopala II, emperor since 866
- Pallava dynasty · 275 – 897 · Nandivarman III, Pallava emperor since 846
- Pandya dynasty · 300 BCE – 1650 CE
- Rashtrakuta Empire · 753 – 982 · Amoghavarsha I, Rashtrakuta emperor since 814
- Samanid Empire · 819 – 999 · Nasr I, Amir of the Samanids since 864
- Kingdom of Khotan · 56 – 1006
and 27 more; every state of South Asia.
East and Southeast Asia27 states
- Tang dynasty · 618 – 907 · Emperor Yizong of Tang, Emperor of China since 859
- Khmer Empire · 802 – 1431 · Jayavarman III, King of the Khmer Empire since 850
- Srivijaya · 650 – 1377
- Silla · 57 BCE – 892 CE
- Champa · 192 – 1832
- Heian period · 794 – 1185
- Parhae · 698 – 926
- Pagan Kingdom · 849 – 1297 · Pyinbya, King of Burma since 846
- Pyu city-states · 201 BCE – 1050 CE
- Kingdom of Nanzhao · 738 – 902
and 17 more; every state of East and Southeast Asia.
Americas and Oceania12 states
- Maya civilization · 2001 BCE – 1521 CE
- Ancestral Puebloans · 850 – 1304
- Zapotec civilization · 6701 BCE – 1201 CE
- Chimor · 850 – 1470
- Sican culture · 700 – 1375
- Tiwanaku polity · 300 – 1150
- Wari Empire · 600 – 1100
- Classic Veracruz culture · 555 – 1235
- United Provinces of New Granada · 181 – 1816
- Muisca Confederations · 800 – 1540
and 2 more; every state of Americas and Oceania.
Location unknown20 states
- Rurikids · 862 – 1598
- Alania · 801 – 1201
- Hindu Shahis · 850 – 1026
- Langkasuka · 100 – 1500
- Zunbil dynasty · 650 – 870
- Möng Mao · 560 – 1604
- Oddiyana · 401 BCE – 1100 CE
- Chavda dynasty · 690 – 942
- Dál nAraidi · 550 – 1150
- Airgíalla · 331 – 1585
and 10 more; every state of Location unknown.
Open in the atlas
- On the timeline, 841 – 891: every state, war and life of 866 and the years either side, region by region.
- On the map in 866: the borders of the year, its cities under their names of the year, and what happened where.
Wikidata (CC0) · data built 2026-10-07 · Pastlas v2.13.1, by Oleh Voronko. The published atlas and its data are for non-commercial use.