Where did the earliest civilizations in West Africa form?

What impact did the gi bill and the interstate highway act of 1957 have on the development of the suburbs

The articles of confederation did not allow the government the power to tax or to force the states to do anything. what challenges could this cause

The antiwar protests of the late-1960s contributed to which of these? the election of lyndon johnson passage of the voting rights act passage of the 26th amendment the geneva accords