Many industrial cities such as Detroit have a history of dominance of employment sector by industries.These industries paid relatively high wages for low-skilled jobs and gave a sense of security ensured by large unions. But at the same time these safe conditions discouraged workers from starting their own businesses or continuing education.
Hence, Declining basic employment sector in industrial cities have left them with a lack of job opportunities for a poorly qualified workforce pushing many families below the poverty line.
1. France and Germany just could not get along.
2. Hitler became Chancellor of Germany and did not agree to any terms.
3. Hitler removed himself, and eventually started WW2
The creation of the an army of Turkish warriors to help the Abbasid Caliphs secure their position ultimately led to the conversion of the Turks to Islam, and eventually giving them control over Sunni Islam.
The Abbasid Caliphs were leaders of the "Abbasid Dynasty," which is 2nd of the two great Sunni (Islam) dynasties. Meanwhile, the Seljuk Turks were nomadic people who converted to Islam. Because they were often used as military mercenaries by the Abbasid Caliphate, their power grew, eventually weakening the power of the caliphs, and giving them "control over" Sunni Islam. They revitalized Islamic laws, reorganized the institutions, and provided political stability to the empire.