Answer:
Ancient Egyptian
Explanation:
Rosetta Stone is a block of black granite (often misidentified as "basalt"), measuring 118 cm high, 77 cm wide and 30 thick.
The stone block has strange minted glyphs separated into three distinct parts. Each part presents a kind of writing that was nothing like the other two. These three forms of writing, it turned out, were texts in the languages written in ancient Egyptian, Demotic, and Greek.
Jam bands such as Dave Matthews Band continue the live performance stylings of The Grateful Dead.
