Which best describes collective learning as a concept?

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

Cubists created artworks that depicted objects as

When conducting research for forming a hypothesis, which practice should historians follow?