The invention of the zero made mathematics

easier to spell

easier to write

hard to add

hard to write

What were consequences of Columbus being shipwrecked off the coast of Portugal?

Who was the first scientist to discover that stars are made of gas

To take by authority, or as if by authority.

Of the three large pyramids at Giza, whose pyramid is known as the Great Pyramid of Giza?

Which US President made history when he became the first and only man to ever become president even though he was elected to the office of President or vice president

What was martin lutherÂ's biggest problem with the church?

The Athenian ruler who is credited with establishing the democratic system of government is

The pluralism and diversity in modern American society is most evident in what current trends in our society? A. The general decrease in immigration to this nation since the 1960s. B. The increasing demand for unskilled labor in our national economy.

The Bill of Rights applies to US citizens and non-citizens alike. True or False

What was one legal issue that arose because of the Louisiana purchase agreement