what kind of clues do historians look for and what is the correct name for these clues

! asap

What is the definition of double v campaign

An educatethe yuan dynasty was responsible for which of the following: i. improving the road system ii. increasing sea trade with india and south east asia. iii. extending the canal system iv. brutal warfare and ruthless killing of people in order to take over china. a. i & iii c. iv only b. ii only d. all of the above member of the government

Under the new imperialism europe did not need large numbers of people to control territories because of