You will do better research if you can find places, find records, and learn how to interpret and record what you find.
Yes, it has been possible to be born in one country, get married in another, and die in a third — without ever leaving your home village. The boundaries in Eastern Europe have been redrawn many times over the years, presenting challenges for modern-day genealogical researchers. Those redrawn boundaries were not as simple as changing lines on a piece of paper; in many cases they resulted in forced migrations. Also, when jurisdictions have changed, it is especially important to learn how to interpret and record information.
Find out more about Dave’s genealogy experience, his background and the talks on his speaker’s page: