What does "marvel" mean in the sentence? "Now the U. S was joined together, literally and symbolically, by a marvel of engineering and human labor — the transcontinental railroad."

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 was the codename of the international coalition formed to seek removal of iraqi troops from kuwait?

According to the map, most mining occurs in the. part of the state