How did the completion of the transcontinental railroad change the lives of American citizens? It increased the wealth of all Americans and enabled them to travel more. It made cross-country travel too expensive for ordinary Americans. It decreased the safety of Americans who moved to settle the plains. It shortened travel time between the East and West for all Americans.

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.

they bring people together to achieve control of the government

basically choosinng what sets in   congress and presdicny this is to keepthe antion hole and so it can last because wiht out authority it wouldnt last a week