What year did the revolutionary war end?

It ended in 1781 but some researchers or people say the treaty meant the US didn't really become independent.

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.

google it and it will pop up