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Title: Leonhard Euler.
Caption: Leonhard Euler, Leonhardus Eulerus, 15 April 1707 - 18 September 1783, was a Swiss mathematician, physicist, astronomer, geographer, logician and engineer.
Credit: Album / Universal Images Group / Bildagentur-online / UIG
Image size: 2912 × 3832 px | 31.9 MB
Print size: 24.7 × 32.4 cm | 1146.5 × 1508.7 in (300 dpi)