Beginning after Columbus' discovery in 1492 the exchange lasted through the years of expansion and discovery.
The union army had blocked all Texas ports. Goods being brought in or out were unable to be delivered. Also, the men had all gone to war. Therefore the factories, farms, and businesses left unattended. Crops could not be harvested, and sold. Thus, the Civil <span>War deeply affected Texas income.</span>
C, the 1960's is the correct answer :^)
hope this helps! have a good day/night!