April 1967: Baha’i literature available in 397 languages and 311 territories opened to the Faith

As of April 1967, the list of those languages in which the Bahá'í literature is available reached 397, and the number of territories opened to the Faith increased to 311. 
(Adapted from the Ridvan 1967 message of the Universal House of Justice, ‘Messages from the Universal House of Justice 1963-1986’)