The fall of the Berlin Wall in 1989, and the dissolution of the Soviet Union in 1991
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I think this is supposed to say media so thats how I am going to answer it!
If there was news reporters at the scene of the Vietnam war it would show many American citizens what was going on. Many people would not like it because it would probably show the Vietnam capturing and torturing American soilders.
Answer:The Ghana Empire (c. 300 until c. 1100), properly known as Wagadou (Ghana being the title of its ruler), was a West African empire located in the area of present-day southeastern Mauritania and western Mali. Complex societies based on trans-Saharan trade in salt and gold had existed in the region since ancient times,[1] but the introduction of the camel to the western Sahara in the 3rd century CE, opened the way to great changes in the area that became the Ghana Empire. By the time of the Muslim conquest of North Africa in the 7th century the camel had changed the ancient, more irregular trade routes into a trade network running from Morocco to the Niger River. The Ghana Empire grew rich from this increased trans-Saharan trade in gold and salt, allowing for larger urban centres to develop. The traffic furthermore encouraged territorial expansion to gain control over the different trade routes.
When Ghana's ruling dynasty began remains uncertain. It is mentioned for the first time in written records by Muḥammad ibn Mūsā al-Khwārizmī in 830.[2] In the 11th century the Cordoban scholar Al-Bakri travelled to the region and gave a detailed description of the kingdom.
As the empire declined it finally became a vassal of the rising Mali Empire at some point in the 13th century. When, in 1957, the Gold Coast became the first country in sub-Saharan Africa to gain its independence from colonial rule, it renamed itself Ghana in honor of the long-gone empire.
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Answer:In 1947, Salk took a position at University of Pittsburgh, where he began conducting research on polio, also known as infantile paralysis. By 1951, Salk had determined that there were three distinct types of polio viruses and was able to develop a "killed virus" vaccine for the disease.
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Although the Spanish were greatly outnumbered, their guns and steel weaponry gave them an overwhelming advantage.
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