<|im_start|>user
What is the study of flags called?<|im_end|>
<|im_start|>assistant
The Study of Flags Is Called Vexillology. Vexillology as a word is derived from the Latin vexillum, a term used by the Romans to refer to a kind of standard with a fabric hung from a horizontal crossbar on a pole. It is the nearest equivalent in the classical languages to what we call a flag today.<|im_end|>
