Complex sentence: Established by Bahá'u'lláh in 1863, it initially grew in Iran (Persia) and other parts of the Middle East region, where it has faced ongoing persecution since its inception.
Split into simpler sentences: Established by Bahá'u'lláh in 1863, it initially grew in Iran (Persia) and other parts of the Middle East region. The religion was born in Iran, where it has faced ongoing persecution since its inception.