“Umm...I think youll find it probably was.”
Not according to Supreme Court Justice Joseph Story:
“The real object of the [First] [A]mendment was not to countenance, much less to advance, Mahometanism, or Judaism, or infidelity, by prostrating Christianity; but to exclude all rivalry among Christian sects, and to prevent [472 U.S. 38, 105] any national ecclesiastical establishment which should give to a hierarchy the exclusive patronage of the national government. It thus cut off the means of religious persecution (the vice and pest of former ages), and of the subversion of the rights of conscience in matters of religion, which had been trampled upon almost from the days of the Apostles to the present age…”
Well he wasnt one of the original draftees so that is his opinion. Besides, amongst those “not countenancing” he would have included Catholicism, atheism, and probably Anglicanism.