September 5

…in the United States; ‘Abdu’l-Bahá conferred many honours on New York and called it the “City of the Covenant”, but this did not prevent Chicago from being chosen as the National Administrative Headquarters owing to its central position in America. 

- Shoghi Effendi  (From a letter dated 31 July 1946 written on behalf of Shoghi Effendi; ‘The Light of Divine Guidance, vol. 1)