Which was a major cause of the birth of the age of exploration in europe in the 15th century?

the decline of nationalism in european countries
the desire for knowledge about the non-european world
diplomatic exchanges with civilizations of the americas
desires to meet savages from distant lands and learn about their culture

answer: because they get bored or smth idk

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.