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Within the first 100 years following the fall of Constantinople, many of the teachers of the geography inside which Greek people lived, fled to the west, north, and east (Venice, Pisa, Trieste, Marseille, Nice, Costanza, Odessa, Kyiv, Mariupol, Stavrupol). Greece was largely orphaned of education opportunities. Together with the church clergy, the cadre of the few remaining teachers began the monumental task of rebuilding the education of the Greek people.