One way in which the Kingdom of Ghana facilitated the gold trade was by trading gold with slaves and other indentured workers. Most of this trading was done with other African nations but some with Europeans.
Racism and sexism came hand and hand but if anything classism seems like the first where royalty or nobility would look down on people with lower social status like peasants.
Answer:
Military communications have to be coded to keep them secret from the enemy. However the process of coding and decoding are time consuming processes. Furthermore the codes may be broken by the enemy. Nations have devoted considerable effort trying to create unbreakable codes. In World War II both Germany and Japan thought they had such unbreakable codes, but in fact these codes were broken and their most vital information were readily available to their enemies.
Explanation:
