How did american painting styles change from the early period to the mid- 1800s

The style of American art changed to reflect the American way of life in the 1800's. Instead of painted portraits, the artist, inspired by the writings of Irving and Cooper, started to paint landscapes and paintings that reflected national pride.

Explanation:

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.