Champollion's deciphering of the Rosetta stone led to This event in tum caused Overall, Champollion's contribution to society was
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grand

Explanation:

Champollion became the scholar that most successfully deciphered the Rosetta Stone, which consequently led the way into the better understanding of Egyptian history and culture. His discovery named him the father of Egyptology, and allowed him to further pursue his passion of deciphering Egyptian texts.

This event in turn caused the price revolution.

Overall, Champollion's contribution to Egyptology was his decipherable of the Demotic script...

Explanation:

roses are red,

violets are black,

for what you said,

i hope you sit on a big fat tack.