They needed a place to stay. Especially during the civil war, when there Sherman's march was taking place.
Some politicians became successful by opposing communism.
Because not every place has the same language. There are many different places with different culture. It can impact a place in different ways. For example, if you speak spanish in a british place, then some people may be confused or want to learn it. It all depends.
Answer;
-North Africa
Explanation;
-The spread of Islam in Africa began in the 7th to 9th century, brought to North Africa initially under the Umayyad Dynasty. Extensive trade networks throughout North and West Africa created a medium through which Islam spread peacefully, initially through the merchant class.
-As Islam spread in the Savannah region, it was quite natural that commercial links should also come to be established with North Africa. Trade and commerce also paved way for the introduction of new elements of material culture, and made possible the intellectual development which naturally followed the introduction and spread of literacy, and for which parts of the Sudan were to become famous in the centuries to come.
One result of advances in medical technology IS BETTER DIAGNOSIS.
The advancement in medical technology has made it possible for health providers to better diagnose and treat their patients much more than before. Advancements in areas like biotechnology, pharmaceuticals and information technology had made possible better diagnosis, improved medical procedures and improved care for patients.