Coloring books for adults all the rage, but apparently, they were popular as far back as the 18th Century. A 256-year-old coloring book has been found in the library of the Missouri Botanical ...

P.J. Buchoz's 18th-century botanical prints, valued at $9,600, include six hand-colored engravings from 1776, praised for their exceptional quality and suitability for any space or collection.

Coloring books for adults all the rage, but apparently, they were popular as far back as the 18th Century. A 256-year-old coloring book has been found in the library of the Missouri Botanical ...