How did technology affect society between late 19th and early 20th century?

During this period we experienced massive population growth due to the improvement of medicine. With this newfound technology more jobs were created and industrialization became the norm. New sources of entertainment became available. A whole lot of things happened but these are some of the most notable.

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.