The reason for the diversity is due to the involvement of islamic states into trades.
<u>Explanation</u>:
There are around 1.5 billion muslims and only in USA there are around 5-6 million. Islamic states came into the field of trading. Islamic traders trade along Asia and the Far East as it is considered to be the main trade route. Sufi orders were then further extended and finally strengthened by the enlargement of converted rulers' territories and their societies.
Trading of crude oil and refineries makes them stand out in the world trade competition. The technological advancements and innovations in the Islamic Gulf countries is the outcome of their successful trading.
Slavery played the central role during the American Civil War. The primary catalyst for secession was slavery, especially Southern political leaders' resistance to attempts by Northern antislavery political forces to block the expansion of slavery into the western territories.
