The Rosetta Stone was discovered in 1799 by French soldiers during Napoleon's Egyptian campaign.

The decree inscribed on the Rosetta Stone was issued by Ptolemy V Epiphanes, a king of Ptolemaic Egypt, in 196 BC.

The Rosetta Stone is inscribed with three versions of a decree: the upper text is Ancient Egyptian hieroglyphs, the middle text is Demotic script, and the lower text is Ancient Greek.

The Rosetta Stone was used to commemorate the coronation of Ptolemy V Epiphanes as king of Ptolemaic Egypt in 196 BC.

The Rosetta Stone provided a key to understanding the meaning of hieroglyphs by allowing scholars to compare the hieroglyphic text with the Greek text, which was already known.

Jean-François Champollion was the first person to decipher the hieroglyphs on the Rosetta Stone in 1822.

The Rosetta Stone is currently housed in the British Museum in London, England.

The Rosetta Stone is significant because it allowed scholars to decipher Egyptian hieroglyphs, provided new insights into Ancient Egyptian history and culture, and helped to establish the chronology of Ancient Egypt.

The Rosetta Stone is made of basalt, a dark, volcanic rock.

The Rosetta Stone measures 114.4 cm in height, 72.3 cm in width, and 27.9 cm in thickness.

The Rosetta Stone weighs approximately 760 kg.

The decree inscribed on the Rosetta Stone is written in Ancient Greek.

The decree inscribed on the Rosetta Stone is dated to 196 BC.

The decree inscribed on the Rosetta Stone commemorates the coronation of Ptolemy V Epiphanes as king of Ptolemaic Egypt in 196 BC.

The Rosetta Stone is significant for the study of Ancient Egypt because it allowed scholars to decipher Egyptian hieroglyphs, provided new insights into Ancient Egyptian history and culture, and helped to establish the chronology of Ancient Egypt.