Why did urban riots break out in Us cities in 1967?

2 July 1967, Newark, New Jersey, US, Factors that contributed to the Newark Riot: police brutality, political exclusion of blacks from city government, urban renewal, inadequate housing, unemployment, poverty, and rapid change in the racial composition of neighborhoods.

Explanation:

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.