
It was one of the most importance finds and helped to improve the knowledge about that era tremendously. The astronomers are not using the term, 'Rosetta Stone of supernovae' lightly.

It was found by French General Napoleon's soldiers, but is now in the British Museum. Since ancient Greek was well known, it allowed the Egyptian scripts to be decoded.

It is a stone tablet found in 1799 in Egypt and it has helped to decipher Egyptian hieroglyphics that were then totally untranslatable - it is a decoder as it is written in three scripts - ancient Greek and 2 Egyptian ones.
