What other countries besides Mali and many other West African countries fell before the power of the Songhay?

Why would the isolation of buddhist monks contribute to the religion’s decline?

How did german physicist werner heisenberg's uncertainty principle shake beliefs in newtonian physics?

President clinton, on the fortieth anniversary of the events in arkansas surrounding the "little rock nine," stated that "when the constitutional rights of our citizens are threatened, the national government must guarantee them." this principle was the basis for using federal authority in: the expansion of voting rights to women. the passage of the civil rights act of 1964. the passage of the americans with disabilities act. all of the choices.