1090
Hassan-i Sabbah takes Alamut
The Nizari Ismaili propagandist seized the mountain fortress of Alamut in the Elburz range north of Qazvin without a blow, by converting its garrison…
Su Song Completes His Astronomical Clock Tower
In Kaifeng, the engineer Su Song finished constructing a water-powered astronomical clock tower standing forty feet tall.
Bernard of Clairvaux born in Burgundy
The future Cistercian abbot, preacher of the Second Crusade, and theological hammer of twelfth-century Europe was born to Burgundian nobility…
Chinese Maritime Compass Approaches Practical Use
Building on Shen Kuo's description of the magnetized needle, Song mariners and instrument-makers began experimenting with compass devices for open-sea…
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Frequently asked
What happened in the year 1090?
Saeculum lists 4 events from 1090. The most significant is Hassan-i Sabbah takes Alamut.
What era was 1090 part of?
1090 falls within the High Middle Ages (1000-1300). Crusades, cathedrals, and the slow waking of Europe.
Which regions saw notable events in 1090?
The events from 1090 span Middle East, East Asia and Europe.