High Quality Content by WIKIPEDIA articles! Irreligion in Mexico may refer to atheism, agnosticism, deism, religious skepticism, secular humanism or general secularist attitudes in Mexico. Mexico was born after its independence as a confessional state. The first Mexican constitution was enacted in 1824, it stated that the religion of the nation is and will perpetually be the Roman Catholic Apostolic, and prohibited any other religion. Since 1857, the country has no official religion and some anti-clerical laws contained in both the 1857 and 1917 Constitutions imposed severe limitations on religious organizations and sometimes codified state intrusion into religious matters.