The original Church of Christ which is the Catholic Church is present in Iran or Persia. Iran has a diplomatic ties with the Vatican therefore the Church of Christ which is the Catholic Church is legally present there.
The Iglesia ni Cristo (Church of Christ if translated to English) was founded by Felix Manalo, a self proclaimed "Last prophet" from the Philippines has no formal recognition in Iran other than Filipino expats who make up the Iglesia ni Cristo community if there are any.
The Church of Christ which is the Catholic Church has visible houses for worships in Iran and Catholics are legally allowed to worship while the Iglesia ni Cristo of Felix Manalo members who are all Filipinos has to meet secretly in private houses.
No, Persia is the country also known as Iran.
Iran
Iran.
Iran
Persia is now known as Iran.
Iran.
Iran
Persia is called IRAN today and Cathay is the northern part of what is CHINA today.
Persia and Iran are the same country. Iran used to be called Persia, but has changed its name to Iran in modern times. Although, people still call Iran, Persia occasionally. And the story 'Arabian Nights' is the Western World's name for the story 'One Thousand and One Nights' which does take place in Persia (present-day Iran).
There is not a country called Persia at present. Today's Iran was called Persia in ancient times. Now it is 1.68sq km.
China and Iran
Persia is now called Iran