Ok let's cut to the chase.
You don't have Stonehenge, you don't have recorded cultural artefacts other than native American as we know it and you want something to play with so you can join the history club.
Have Jesus! You can say he visited Michigan, or even that the dudes in The Holy Land knocked his legacy.
I'll not be concerned if you want some Christian heritage prior to William Brewster. All the same to me.
(Reminds me of the possibly apocryphal tale of two USA visitors to The Bodlien Libray in Oxford. They looked around the building and were suitably impressed. "Hey, is this pre war?" asked one. "It is pre America" said the porter.
Sorry, not trying to get all anti USA here, but claiming Christian groups from far back is a bit embarrassing for your more sane citizens.....