The Nuttall Encyclopedia
Ideler, Christian Ludwig
A German astronomer, born in Prussia; an authority on chronology, on which he wrote a handbook, as also a work on the reckoning of time among the Chinese (1766-1846).
Wood, James, ed. Entry for 'Ideler, Christian Ludwig'. The Nuttall Encyclopedia. https://www.studylight.org/encyclopedias/eng/nut/i/ideler-christian-ludwig.html. Frederick Warne & Co Ltd. London. 1900.