Below are a few examples of very recently published special sources found in the library's Geographic File:
Answer: Vatican City
5. San Marino (which also claims to be the oldest state in Europe, founded in the fourth century)
Vexillology is the study of flags. According to the International Federation of Vexillological Associations (FIAV), which is an "... international federation of 55 regional, national, and multinational associations and institutions across the globe, ... (vexillology is) the creation and development of a body of knowledge about flags of all types, their forms and functions, and of scientific theories and principles based on that knowledge."
The FIAV's own flag