Select all that apply.
mark each statement if it describes a change in historical knowledge based on new discoveries.
a. historians know more about ancient sumer today than historians did long ago because of archaeological digs over the last two centuries.
b. when king tut’s tomb was discovered undisturbed in the 1920s, we gained a greater understanding of the egyptians’ belief in the afterlife.

the great wall of china worked as a defense for the feudal states of the zhou dynasty to the north. during the warring states period more walls were put up to defend the borders of the different kingdoms. it was semi successful because despite the wall, the mongols eventually conquered china also the great wall provided protection to the economic development and cultural progress, safeguarded the trading routes such as the silk road, and secured transmission of information and transportation. @jayxboof

lincoln presided over the union victory in the american civil war, which dominated his presidency. a former whig, lincoln ran on a political platform opposed to the expansion of slavery in the territories. his election served as the immediate impetus for the outbreak of the american civil war.