The development of mass marketing impacted late nineteenth-century american society chiefly by:

The development of mass marketing impacted late nineteenth-century American society chiefly by leading to the demand for standardized products. Through standardized products, it reduced prices for consumers and created a demand for branded goods. It also distorted some class distinctions that existed.

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.