What do Karl Marx and Friedrich Engels, the authors of communist manifesto, mean by the term “class antagonism”?

What were copernicus’s ideas about the order of the universe deemed to be dangerous to church thinking? (5 points) a.the church was invested in the idea that the earth was at the center of the universe b.copernicus was developing a new religion that would challenge the church c.the church feared his ideas threatened their control of european universities d.copernicus was a follower of luther and therefore could not be trusted

Compare and contrast the civil rights act of 1964 and the civil rights act of 1991

How did the government restrict immagration in the 1920