From about 500,400 B. C. on, the Bantu speaking people of Africa were using tools.

ayatollah khomeini can best be described as the leader who declared iran to be an islamic republic.

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the national congress's powers over the states were specific and definite: it had the sole power to negotiate treaties, declare war, and make peace. all powers not granted to congress were reserved for state governments. congress had no power to levy taxes, for example.