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Caption: Charlemagne receiving the gift of a clepsydra (water clock) from Harun al-Rashid - In 797 the caliph of Baghdad, Haroun ar-Rachid (765-809) offers Charlemagne a clepsydra (water clock, time measurement) emblematic of the technological know-how of Arab civilization -
Technique/material: engraving
Location: PRIVATE COLLECTION
Credit: Album / Bridgeman Images
Image size: 2928 × 4488 px | 37.6 MB
Print size: 24.8 × 38.0 cm | 1152.8 × 1766.9 in (300 dpi)