Is there anything else like the Rosetta Stone?

by xain1112
IrishEv

There is, the Behistun Inscription. It translated Old Persian, Elamite, and Babylonian, using the cuneiform script. Cuneiform is, "A writing system invented by the Sumerians that used a wedge-shaped stylus, or pointed tool, to write on wet clay tablets that were then baked or dried" (from the textbook, The Heritage of World Civilizations, Volume 1 Eighth Edition). Here is a link to the translated version of the Inscription.

This inscription, which is carved into the side of a cliff allowed for people to figure out cuneiform, which was the dominate writing system (and first writing system) in the Iran/Iraq area.

smersk

The Burmese Sawlumin inscription details a Buddhist story in five languages: Burmese, Pyu, Mon, Pali and Tai-Yuan.

https://en.m.wikipedia.org/wiki/Sawlumin_inscription

It is from around 1053, but was discovered only recently in 2013. Only 60% has been transcribed, but has already proven to be a significant artefact in the history of South East Asian scripture. A similar artefact exists in Bagan, called the Myazedi Inscription.