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|Centuries:||9th century – 10th century – 11th century|
|Decades:||960s 970s 980s – 990s – 1000s 1010s 1020s|
|Years:||994 995 996 – 997 – 998 999 1000|
|997 by topic|
|State leaders – Sovereign states|
|Birth and death categories|
|Births – Deaths|
|Establishment and disestablishment categories|
|Establishments – Disestablishments|
|Ab urbe condita||1750|
|Bahá'í calendar||-847 – -846|
|English Regnal year||N/A|
|Chinese calendar||丙申年 (Fire Monkey)
3693 or 3633
— to —
丁酉年 (Fire Rooster)
3694 or 3634
|- Vikram Samvat||1053–1054|
|- Shaka Samvat||919–920|
|- Kali Yuga||4098–4099|
|Igbo calendar||-3 – -2|
|Japanese calendar||Chōtoku 3
|Minguo calendar||915 before ROC
|Thai solar calendar||1540|
|Wikimedia Commons has media related to 997.|
- First documented reference to the City of Gdańsk.
- Saint Adalbert of Prague is sent to Prussia by Boleslaus I of Poland.
- Samuil of Bulgaria is crowned Tsar by Pope Gregory V.
- Trondheim, Norway is founded by the king Olav Tryggvason. This will function as the main city and capital of Norway, until Bergen is founded in 1070.
- In Spain, the muslim de facto ruler of al-Andalus, al-Mansur, with the support of the Christians Portuguese knights, sacks one of Christendom's holiest sites of pilgrimage, Santiago de Compostella. On their way they sack the cities of Zamora and Leon.
- In Southern Italy, rebellion of against the Byzantine rule led by Smaragdos and Peter.
- April 23 – Saint Adalbert of Prague (martyred)
- Emperor Taizong of Song
- Géza, Grand Prince of the Hungarians
- France, John (1991). "The occasion of the coming of the Normans to southern Italy". Journal of Medieval History 17 (1): 183–203.