Answer:
Opening sentence: This is the story of their attempts, and of how the Rosetta Stone finally enabled scholars to unlock the Egyptian past.
Step-by-step explanation:
As we can read from the text the author shows as that there were many attemtps and that it was not until the discovery of the Rosetta Stone that the meaning of the symbols was uncovered. Therefore, the sentence "This is the story of their attempts, and of how the Rosetta Stone finally enabled scholars to unlock the Egyptian past. " states the author's postion.
HOPE THIS HELPS ;}