What do you see as the purpose & Importance
for studying the history of slavery ?

Because of developing a critical attitude.

Explanation:

History teaches us many things, including negative phenomena from the past. In this case, it is essential to know the history of slavery to develop a critical attitude towards this negative phenomenon. It is critical to understand this historical epoch so that nothing similar would ever happen in the future. History warns us of past mistakes, so humanity needs to learn from these mistakes for society.

mass production/ assembly line production

b. major john c. frémont led a rebellion called the bear flag revolt.

explanation:

during the bear flag revolt, from june to july 1846, a small group of american settlers in california rebelled against the mexican government and proclaimed california an independent republic. the republic was short-lived because soon after the bear flag was raised, the u.s. military began occupying california, which went on to join the union in 1850. the bear flag became the official state flag in 1911.