Reference

ptable(1) on Linux

The text 8f3ff9ca4f2a, as Debian 13 (Trixie), Debian 12 (Bookworm), Debian 11 (Bullseye), Debian 9 (Stretch), Debian 8 (Jessie), Debian 7 (Wheezy) shipped it. The page shows this text now.

a simple periodic table of elements

ptable(1) on Linux now