What two factors pushed europeans across the atlantic ocean

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?

What russian alphabet was influenced by the greeks?

Which roman emperor was responsible for a major shift in the dominate religious attitude of the roman empire?