Omar happened after how many years of elephants

Why was russia drawn into a conflict with germany after ausria-hungary declared war on serbia ?

Which two sets of political ideas speed as a result of the worldwide depression of the 1930s

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