Rosetta Stone the Napoleonic Wars, a long-running dispute over the relative value of Young and Champollion's contributions to the decipherment and, since 2003, demands for the stone's return to Egypt. Two other fragmentary copies of the same decree were discovered later, and several similar Egyptian bilingual or trilingual inscriptions are now known, including two slightly earlier Ptolemaic decrees (the Decree of Canopus in 238 BC, and the Memphis decree of Ptolemy IV, c. 218 BC). The Rosetta Stone is, therefore, no longer unique, but it was the essential key to modern understanding of Ancient Egyptian literature and civilisation. The term "Rosetta Stone"
Rosetta Stone Ltd. v. Google, Inc. trademark infringement claim against eBay by Tiffany's, to rule against Rosetta Stone's contributory infringement claim. In that case, the Second Circuit had ruled that the receipt of thousands of notices of counterfeit Tiffany jewelry did not amount to "knows or has reason to know" on the behalf of eBay. The district court found Rosetta Stone's delivery of around 200 notices of sponsored links advertising counterfeit Rosetta Stone software was insufficient to prove that Google knew or had reason to know that the sites were engaging in trademark infringement. The Court reversed, finding that the district court's evaluation of the evidence