So, I just learned that one of the first tanks in the world was created by a ukrainian! Here is the article (you'll have to translate it to English, as the English article does not include that the father of the creator was from Lviv, which is a ukrainian city.
Fun fact: France used some of the ideas of the ukrainian tank to create the famous FT-17. The Burstyn Tank (its official name) was the first ever tank to have a fully rotating turret.
P.S.: it was created in 1911.