N° Date Subject 01 25/03/2011 Immortalizing the People's Revolution 02 23/04/2011 World Book and Copyright Day 03 03/05/2011 World Press Freedom Day 04 20/05/2011 Children's drawings 05 28/06/2011 Medicinal Plants 06 28/07/2011 World Stamp Exhibition "PHILANIPPON 2011", Yokohama (Japan) 07 10/12/2011 Universal Declaration of Human Rights: Independence of the Judiciary