Timbuktu became a center of trade and learning true or false ?

The answer is True.

Explanation:

'From here to Timbuktu' In the West, the city has become synonymous with mysterious isolation, the farthest one can travel. However, for centuries this was a major trading hub and a center for scholarship. The city reached its height in the 16th century when it was controlled by the Songhay Empire.

TRUE

Explanation:

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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.

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