The original paper in Science by Mathieu Ossendrijver:<p><a href="http:&#x2F;&#x2F;science.sciencemag.org&#x2F;content&#x2F;351&#x2F;6272&#x2F;482" rel="nofollow">http:&#x2F;&#x2F;science.sciencemag.org&#x2F;content&#x2F;351&#x2F;6272&#x2F;482</a><p>&quot;Ancient Babylonian astronomers calculated Jupiter’s position from the area under a time-velocity graph&quot;<p>As gene-h noted, it&#x27;s interesting because it&#x27;s something close to calculus but done so early in history.