The March of Intellect
William Heath · 1828 · hand-colored etching
Public domain
Public domain on Wikimedia Commons. Published in 1830 or earlier, and the file’s license name is Public domain — not “no known restrictions.”
How this license was checked
commons:LicenseShortName=Public domain; year=1828
About this picture
The March of Intellect is a public-domain illustration by William Heath, dated 1828. Hand-colored etching. The file comes from Wikimedia Commons.
“The March of Intellect” (1828) is held by Wikimedia Commons. Wikimedia Commons marks the file public domain. It is a print, so other impressions of the same design can exist.
Each file is included because the source archive marks it public domain or CC0. That is the archive’s statement, not a guarantee. Check the source record for your own use, especially outside the United States.