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 (software) and higher. Later revisions of Version 1 for Macintosh required System 7. The final revision of Version 1 was v1.9. At Version 2, Fairfield continued to add more language courses, but also marketed more editions of The Rosetta Stone software. The PowerPac CD-ROM introduced in Version 1 now featured basic lessons in seven languages. One complete level of a language course was now called a Personal Edition of the software. Because many consumers found The Rosetta Stone to be too expensive, Fairfield started a series of "Explorer" editions. An Explorer CD-ROM was a lower-cost excerpt of a Version 2 course.