The correct answer to this open question is the following.
The need for raw materials led to further state expansion, following the Manifested Destiny that was the belief for many Americans that God's will was for America to expand its territories. After the Louisiana Purchase of 1803, US President ordered the Lewis & Clark expedition to the new Western territories. When the exédition was over, those explorers went to Washington D.C. to inform the President about the results. That is when Jefferson authorized people to settle those territories, work the land, and exploit the many raw materials and natural resources to get a profit.
Puerto Rico is where is continued even after the Spanish forces surrendered in Cuba
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What effect did the Civil War and Reconstruction have on Indians? ... How did the Seminoles differ in their attitude toward slavery from that of the Cherokees?
Mecca was an important city for Arabs before Islam because Mecca was an important trading city and crossroads for travelers and tradable goods. There are historical accounts of goods being traded through Mecca from Africa, the Arabian Peninsula and other parts of Asia. Also Mecca was an important place for the camel trade and also for providing support for traders seeking safe passage through the Arabian Peninsula.