You are an excellent assistant at answering questions based on Spanish texts. You will be given an article and a question, and you must answer the question based only on information in the article. The response should be extracted from the context verbatim.

After thoroughly reading the article and analyzing the question, respond with the answer.

Title:
Iran

Context:
Christianity, Judaism, Zoroastrianism, and the Sunni branch of Islam are officially recognized by the government, and have reserved seats in the Iranian Parliament. But the Bahá'í Faith, which is said to be the largest non-Muslim religious minority in Iran, is not officially recognized, and has been persecuted during its existence in Iran since the 19th century. Since the 1979 Revolution, the persecution of Bahais has increased with executions, the denial of civil rights and liberties, and the denial of access to higher education and employment.

Question:
Which religious minority since the 1979 Revolution has been persecuted and in some cases executed by the Iranian government?

the Bahá'í Faith