The impact of America's wars on industrial production has varied dramatically, depending on the particular war and the stage of industrial development.
Federal Emergency Relief Administration (FERA) Collection
Modern astronomy came mostly from the discovery that the earth was revolving around the sun and not the sun around the earth. The church claimed before that the earth is in the middle of the universe and that the sun goes around it, however, astronomers of the time managed to prove that the earth was in fact revolving around the sun.
