Rosetta Stone (also translated as Rosetta Stone), with a height of 1. 14m and a width of 0.73m, was made in 196 BC and engraved with the imperial edict of King Ptolemy V of Egypt. The stone tablet is engraved with the same contents in Greek, ancient Egyptian and popular characters at that time, which gives modern archaeologists the opportunity to interpret the meaning and structure of Egyptian hieroglyphics that have been lost for more than 1000 years after comparing the contents of each language version, which has become an important milestone in the study of ancient Egyptian history today. The Rosetta Stone was first discovered in the Egyptian port city of Rosetta in 1799 by French captain Pierre-Fran? ois Zavier bouchard, but it was transferred to Britain during the Anglo-French War and has been kept in the British Museum and publicly displayed since 1802.

Because of its popularity and importance, the term Rosetta Stone or Rosetta Stone has been extended to mean or imply other things besides the stone tablet itself. Among them, because the inscription on the stone tablet is used for language translation, there is a very popular multilingual learning software, which is also named after the Rosetta Stone. In addition, because it is the starting point of solving puzzles like Egyptian hieroglyphics, the Rosetta Stone is also used as a metaphor for the key clue or tool to solve a puzzle or difficult thing. For example, the European Space Agency (ESA) named its space probe Rosetta, because through this plan, the secrets of the solar system will be solved, which is a key breakthrough in astronomical research.