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.
Czechs are people living in the Czech Republic whereas people inhabiting Slovakia are known as Slovaks. Historically, the region now known as Czech Republic was once part of the Austrian empire whereas the Slovak area was a part of the Kingdom of Hungary.and in Slovakia is mainly mountainous with the Carpathian mountains in the Northern part of the country. Climate in Czech Republic is primarily continental, whereas that in Slovakia is between temperate and continental.