Read this excerpt from The Riddle of the Rosetta Stone.Then one day a colleague sent him a copy of an inscription that had been found in the ruins of a temple on the Nile River island of Philae.Which statement best describes the influence his colleague’s act had on Jean-François Champollion?

The inscription from Philae gave Champollion useful evidence for understanding Egyptian hieroglyphs. Comparing it with other known inscriptions helped him make progress in deciphering them, so his colleague’s act was a breakthrough in his research—not an obstacle or something that made the work worthless.

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