What allowed native americans in mexico to settle city is larger than those in areas of the north

The development of cities that were built by an earlier civilization

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The  pan-african movement  was an "emotional, cultural, psychological and ideological  movement  that began among the  african  dispora in the western hemisphere, for a closer  purpose, so that  african  people could feel secure, attain political, economic as well as psychological power visa vis other races or world regions" .