For thousands of years, humans have persecuted themselves for religion. This is because he can not accept other beliefs, leading to distrust, panic, and allegation. In its most extreme form, persecution leads to expulsion of the country and genocide. However, as Westerners civilize, this behavior is considered disappointing. Therefore, religious persecution is a socially acceptable model, that is, discrimination. This change comes from the enactment of the US Constitution which guarantees the freedom of religion.
According to US law, the provision of the first amendment of the Constitution of the United States constitutes the constitutional right to freedom of religion, with the free exercise of its amendment. In the relevant Constitution text, "Congress shall not enact legislation on establishment or prohibition of religious freedom". "Establishment clause" is based on a number of persecutors, including the Clarendon Constitution, the 1689 Bill of Rights, the Colonial Constitution of Pennsylvania and New Jersey. The first draft of John Dickinson was created while he drafted the federal provision. In 1789, James Madison then created another draft which will be part of the First Amendment of the Bill of Rights, after discussion and debate at the first General Assembly.
Religious freedom guaranteed by the first revision of the US Constitution includes two important elements. One is to prohibit the government's "establishment of religion" - separation of the church from the state - and the other is to ensure that the government permits religious activities (Perry, 10). The amendment states that "Congress should not enact laws relating to religious beliefs or ban on free movement" (Constitution). In addition, the 14th amendment supports the freedom of religion, as it contains provisions (constitution) to protect the rights of individuals from domestic law. Many important lawsuits in the American history have further contributed to the improvement of restrictions on religious freedom under the Constitution (ACLU)
Freedom of speech in the United States is protected by the US Constitution and many state constitutions and the first revision of state and federal law. Freedom of speech is not absolute, the US Supreme Court acknowledges several statements that are excluded from freedom and the government can take reasonable hours, places or restrictions on speech I admitted. In most cases it is acceptable to criticize the government and to argue that people may find unpleasant opinions contrary to offensive or public policy. There are exceptions to these general protections, such as the testing of obscene articles by Miller, child pornography, temptation to imminent action, regulation of commercial speech such as advertisements.