What issues divided the country at the end of the era of good feelings?

What divided the country in the era of good feelings was the sectionalism created by regional differences, where each population became loyal to its region.

Explanation:

The Era of Good Feelings was a historic period in the USA representing the feeling of unity among the American population after the war of 1812. This era was marked by little contention between political parties and the union of these countries in favor of the country's growth. However, even with the feeling of unity, sectionalism has become high in the country, this is because the population has become so loyal to their region to the point of ignoring or overriding the wishes of other regions to defend the desires of their home.

the arab empire adopted the muslim religion as their main belief. arabs would influence the people from the territories they invaded towards islam (the muslim belief).

nevertheless, throughout the history of the arab empire, rulers brought intellectual individuals from other religions to their centers of learning. these other foreigners included jews, christians, greeks, persians, and indians.   these resulted in the adoption of important knowledge developed by these cultures by the arabic empire. for example, the works of aristotle were translated from greek to arab and indian scientists brought the numerical concept of "zero" to the arabs.

nowadays, 93% of the arab population is muslim, which at the same time is subdivided in sects including the sunni, zaini, alawi, shia. the remaining 7% is composed mainly of christians.