This Song is written by a group named Creedence Clearwater Revival, It was recorded in November 1969. https://www.youtube.com/watch?v=CvwQmxLaknc&index=12&list=RDntLsElbW9Xo
Creedence Clearwater also sing famous songs including 'Up around the bend,' 'Have you ever seen the rain,' 'down on the corner,' 'Green River,' and many more.
These are the lyrics for the first verse... "Some folks are born made to wave the flag. Ooh, they're red, white and blue, And when the band plays 'Hail to the chief' Ooh, they point the cannon at you, Lord. It ain't me, it ain't me, I ain't no senator's son. It ain't me, it ain't me; I ain't no fortunate one, no." These lyrics basically mean that some people are very patriotic and support the United States efforts in the war, but the singer does not fit into that category and he sees himself as outcast.
This song relates to the time period because it is an anti-Vietnam war anthem. It talks about how he did not support the war and felt like no one should.