Which side of the atlantic did cattle come from? potatoes? sugarcane?

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

Why are primary sources important when studying historical events

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.