Article 1. [All persons born free; their natural rights; slavery and indentured servitude prohibited]
That all persons are born equally free and independent, and have certain natural, inherent, and unalienable rights, amongst which are the enjoying and defending life and liberty, acquiring, possessing and protecting property, and pursuing and obtaining happiness and safety; therefore slavery and indentured servitude in any form are prohibited.
Article 1 of the Vermont Constitution of 1777. Vermont is awesome.
Also, article 3 specifically establishes freedom from religion:
Article 3. [Freedom in religion; right and duty of religious worship]
That all persons have a natural and unalienable right, to worship Almighty God, according to the dictates of their own consciences and understandings, as in their opinion shall be regulated by the word of God; and that no person ought to, or of right can be compelled to attend any religious worship, or erect or support any place of worship, or maintain any minister, contrary to the dictates of conscience, nor can any person be justly deprived or abridged of any civil right as a citizen, on account of religious sentiments, or peculia[r] mode of religious worship; and that no authority can, or ought to be vested in, or assumed by, any power whatever, that shall in any case interfere with, or in any manner control the rights of conscience, in the free exercise of religious worship. Nevertheless, every sect or denomination of christians ought to observe the sabbath or Lord’s day, and keep up some sort of religious worship, which to them shall seem most agreeable to the revealed will of God.