February 28

As regards the celebration of the Christian Holiday by the believers; it is surely preferable and even highly advisable that the friends should in their relation to each other discontinue observing such holidays as Christmas and New Years, and to have their festival gatherings of this nature instead during the Intercalary Days and Naw-Ruz.... 
- Shoghi Effendi  (From a letter written on behalf of Shoghi Effendi, ‘Directives from the Guardian’)