The artifact pictured represents a trade route established by the Abbasid Dynasty. Although it was later destroyed by invading Mongols, it demonstrates that Muslims travelled far and wide bringing with them not just trade goods, but information. this represents the value of during the Golden Age of Islam.

the answer is use of support  

during the 20th century, the role of the vice president has evolved into more of an executive branch position. now, the vice president is usually seen as an integral part of a president's administration and presides over the senate only on ceremonial occasions or when a tie-breaking vote may be needed.