What area is virginia and maryland collectively known as

Chesapeake Region.

The colonies and eventually states of Virginia and Maryland are known as the Chesapeake Region for their location surrounding Chesapeake Bay.

Virginia and Maryland developed in a similar way because of the geography being similar in the two areas. The swampy conditions made them both suitable for tobacco growth and the coastal areas provided areas for cities to grow. The cities became important port cities for trade.

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.