What issued divided the country at the end o the era of good feelings?

the american revolution was by the middle and upper class, and the french was by the lower and middle class.

the  seven  days  battles  were  a series of seven battles over seven  days from june 25 to july 1, 1862, near richmond, virginia,  during  the american civil war. the  seven  days ended with mcclellan's army in relative safety next to the james river, having suffered almost 16,000 casualtiesduring  the retreat.