What was one major effect of industrialization in the United States in the late 1800s?

Examine these two paintings that depict famous events from american history. the image on the left, painted in 1940, shows the signing of the u.s. constitution in 1787. the image on the right, painted in 1836, shows the american victory at the battle of yorktown in 1781.which of these paintings should be considered a secondary source?

How did the atomic bomb end the war

Why might the greeck city states have an advantage over the persians