Rosetta Stone Athanasius Kircher in the 17th, and Georg Zoëga in the 18th. The discovery of the Rosetta Stone in 1799 provided critical missing information, gradually revealed by a succession of scholars, that eventually allowed Jean-François Champollion to solve the puzzle that Kircher had called the riddle of the Sphinx. The Greek text on the Rosetta Stone provided the starting point. Ancient Greek was widely known to scholars, but they were not familiar with details of its use in the Hellenistic period as a government language in Ptolemaic Egypt; large-scale discoveries of Greek papyri were a long way in the future. Thus,
Rosetta Stone (software) 3.0 or 4.0.x. The Rosetta Stone v2.1 through v2.2.x are only compatible with v6.x language courses. These versions of the language packs and software engine are neither backward compatible nor forward compatible. Language discs developed for The Rosetta Stone v2.0.x are incompatible with these later revisions of the software. In v2.1.4.1A of The Rosetta Stone, the program began using copy protection software called SafeDisc. Rosetta Stone Version 3 is not backward compatible with language packs developed for Rosetta Stone Versions 1 or 2. Version 3 was initially released in August 2007 for ten bestselling languages, with other languages following later