A valid source is one that . . . is written by someone with a college degree.

has the information you need to complete your paper.

has been published in a newspaper, magazine, or website.

has information you can trust, due to a number of factors.

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.

answer; i believe the correct answer is benjamin harrison;