My dear and valued co-worker: I wish to add a few words in person regarding the commemoration of my birthday anniversary. I would earnestly request all believers and Assemblies not to observe, under any circumstances, whether officially or privately, my birthday anniversary. I strongly feel that only anniversaries in connection with the life of the Báb, Bahá’u’lláh and ‘Abdu’l-Bahá should be celebrated by the believers. It will, I am sure, prove conducive to my own spiritual growth and happiness, and would be in the best interests of our beloved Faith. I trust that you will acquaint all the believers with this insistent request of mine and I feel sure that they will all joyfully respond. Your true brother, Shoghi.
(Shoghi Effendi, Extracts from the USBN)