The Bahá'í World Centre published Bahá'u'lláh's messages to the kings, rulers, religious leaders, and peoples of the world under the title ‘The Proclamation of Bahá'u'lláh’; a special edition was presented to heads of state. In their Ridvan 1969 message the Universal House of Justice indicated that “Already one hundred and twenty-two Heads of State have been presented with the special edition of The Proclamation of Bahá'u'lláh, and copies have been received by thousands more officials and leaders.”
(From Ridvan 1969 message of the Universal House of Justice)
(To read the entire message please visit Messages to the Baha’i World Community – by the Universal House of Justice)