Existing in a variety of forms, the quatrain appears in poems from the poetic traditions of various ancient civilizations including Ancient India, Ancient Greece, Ancient Rome, and China; and, continues into the 21st century, where it is seen in works published in many languages.
I always thought that Mgr. refers to a manager and that's what you find in dictionaries as well. People in Czech use it to stress the fact they are the boss:) Magistr does apply to Master, as in Master's degree, and short versions are M, MAS, or mstr.
What do you call someone from Czech Republic? In other words, what are people from Czech Republic called? A person from Czech Republic and/or a citizen of Czech Republic is called Czech. You may also be interested in what people from Czech Republic speak?