Polish archeologists revealed remnants of military fortifications, defensive trenches and stone shells at an archaeological site in the city of Bok, dating back to the 15th century AD, indicating the use of a windmill at the time for defensive military purposes.
Polish archeologists revealed remnants of military fortifications, defensive trenches and stone shells at an archaeological site in the city of Bok, dating back to the 15th century AD, indicating the use of a windmill at the time for defensive military purposes.