1941 and 1945, across German-occupied Europe, Nazi Germany and its collaborators systematically murdered some six million Jews, around two-thirds of Europe's Jewish population.[a][c] The murders were carried out in pogroms and mass shootings; by a policy of extermination through work in concentration camps; and in gas chambers and gas vans in German extermination camps, chiefly Auschwitz, Bełżec, Chełmno, Majdanek, Sobibór, and Treblinka in occupied Poland
The words in the excerpt stated above which best show that Giblin views the Rosetta Stone as very important are the following: more valuable and famed. The adjective "more valuable" indicates value and worthy while "famed" indicates popularity or highly acclaimed.
Joseph Warren is the man that successfully delivered the colonial message to Concord that the British troops were on their was on April 18, 1775 at night.