- Asia
The Laguna Copperplate Inscription
Dated to 900 CE, the earliest known Philippine document records a debt remission and reveals an organised society of datus and nobles already linked to the wider Malay and Javanese world.
Era: Barangays, Indianised Polities and the Islamic Sultanates
Sources: Philippines (country overview and history) · Encyclopaedia Britannica
- Asia
Goryeo dynasty founded
Wang Geon establishes the Goryeo dynasty, which reunifies the peninsula and gives rise to the Western name Korea.
Era: Shared Korean Heritage
Sources: Korea (history) · Encyclopaedia Britannica
- Asia
Wang Geon founds Goryeo
The general Wang Geon establishes the Goryeo dynasty at Kaesong; by 936 he reunifies the peninsula, giving rise to the Western name Korea.
Era: Unified Silla and Goryeo
Sources: Koryo (Goryeo) dynasty · Encyclopaedia Britannica, Korea (history) · Encyclopaedia Britannica
- Europe
Tomislav recognised as king of the Croats
Having united the Croats of Dalmatia and Pannonia and held off the Magyars and Bulgars, Tomislav was addressed as king in letters of Pope John X and is regarded by tradition as the first king of a unified Croatia.
Era: The Medieval Kingdom and the Union with Hungary
Sources: Tomislav, ruler of Croatia · Encyclopaedia Britannica, Croatia in Europe through the Ages: Development of the State · Croatia.eu (Miroslav Krleza Institute of Lexicography)
- Europe
England unified under Athelstan
By capturing Viking-held York and securing the submission of other rulers, Athelstan became the first king to rule over all of England, forging a single English kingdom.
Era: Roman Britain and the Anglo-Saxon kingdoms
Sources: Athelstan, King of England · Encyclopaedia Britannica, Story of England: 1066 and the Norman Conquest · English Heritage
- Europe
Founding of the Althing at Þingvellir
The settlers established a general assembly, the Althing, on the plain of Þingvellir, where law was recited from the Law Rock; it is one of the oldest parliaments in the world and the centre of the Icelandic Commonwealth.
Era: The Settlement and the Icelandic Commonwealth
Sources: History of Þingvellir and the Alþing · Þingvellir National Park (official), Thingvellir · Encyclopaedia Britannica, The Discovery and Settlement of Iceland · Encyclopedia.com
- Europe
Reign of Gorm the Old at Jelling
Gorm the Old, the first historically recognised king of Denmark, ruled from Jelling in Jutland and raised the older Jelling stone in memory of his wife Thyra, founding the royal line that endures today.
Era: The Viking Age and the Birth of the Kingdom
Sources: Denmark: The Viking era · Encyclopaedia Britannica, Gorm the Old, Harald Bluetooth and Svein Forkbeard · National Museum of Denmark
- Europe
Otto I crowned emperor
Pope John XII crowned Otto I of East Francia emperor in Rome, uniting the German and Italian kingdoms and founding the Holy Roman Empire that would frame German political life for over 800 years.
Era: The Holy Roman Empire and the Reformation
Sources: Otto I, Holy Roman Emperor · Encyclopaedia Britannica
- Europe
Siegfried acquires Lucilinburhuc
Count Siegfried of the Ardennes obtained the rocky promontory of Lucilinburhuc above the Alzette and built a castle on the Bock, the founding act of the city, the country and the nation.
Era: Siegfried's Rock and the County of Luxembourg
Sources: History of the City of Luxembourg · Ville de Luxembourg (City of Luxembourg), History of the city of Luxembourg · Luxembourg City Tourist Office
- Europe
The Jelling Stone names Denmark
King Harald Bluetooth raised a great rune-stone at Jelling proclaiming that he had unified Denmark and Norway and made the Danes Christian; it carries the earliest written record of the name Denmark.
Era: The Viking Age and the Birth of the Kingdom
Sources: Jelling Mounds, Runic Stones and Church · UNESCO World Heritage Centre, The Jelling Stone · National Museum of Denmark
- Europe
Carniola first attested
The march of Carniola, in the central part of present-day Slovenia, appears in the records as a frontier zone of the empire, the nucleus of the duchy that would later define the Slovene lands.
Era: Carantania and the Slavic Settlement of the Eastern Alps
Sources: History of Slovenia · Government of Slovenia (gov.si), Slovenia: The Middle Ages · Encyclopaedia Britannica
- Europe
The Eastern March granted to the Babenbergs
The marchia orientalis, a frontier march of the Holy Roman Empire on the Danube, was entrusted to Count Liutpold of the Bavarian house of Babenberg, beginning their long rule over the future Austria.
Era: Ostarrîchi: The Babenberg March and Duchy
Sources: Ostarrîchi: Austria under the Babenbergs · Die Welt der Habsburger (The World of the Habsburgs)
- Europe
Hugh Capet elected king
Beginning of the Capetian dynasty and the long consolidation of the French crown.
Era: The Franks & the Birth of France
Sources: Hugh Capet · Encyclopædia Britannica
- Europe
First mention of 'Ostarrîchi'
A charter of Emperor Otto III used the word 'Ostarrîchi', the 'eastern realm', the earliest recorded form of the name Österreich (Austria), referring to the Babenberg march.
Era: Ostarrîchi: The Babenberg March and Duchy
Sources: Ostarrîchi: Austria under the Babenbergs · Die Welt der Habsburger (The World of the Habsburgs)
- Europe
Tsar Samuel's state centred on Ohrid
Samuel built a powerful western Bulgarian state with its capital and a patriarchate at Ohrid, resisting Byzantine expansion for decades until his defeat by the emperor Basil II.
Era: Slavic Settlement, Tsar Samuel and the Ohrid Archbishopric
Sources: Samuel, tsar of western Bulgaria · Encyclopaedia Britannica, North Macedonia: History (Ancient, Ottoman, Yugoslav) · Encyclopaedia Britannica
Formation in the 10th century
Every event in the Terralore archive tagged formation — origins, unifications and the founding of states as each nation's archive records them, narrowed to the 10th century — 15 of them, drawn from 13 nations, running from 900 to 997. Each entry keeps the sources it was verified against and links back to the chronicle it came from.
- Events
- 15
- Nations
- 13
- Earliest
- 900
- Latest
- 997
- Europe
- 12
- Asia
- 3
Every entry below is the same record, with the same sources, as the one on its nation’s chronicle.