Tannenberg is the German name for the formerly East Prussian, now Polish, city of Olsztynek[?]. It is still widely known by its German name due to two famous battles fought in its vicinity, in 1410 and 1914.
... the age of 18, 6.3% from 18 to 24, 32.3% from 25 to 44, 21.1% from 45 to 64, and 11.8% who are 65 years of age or older. The median age is 37 years. For every 100 females ...