Black Sun

Jatagan Mala, one of the main settings of the show, was an actual area of Belgrade that existed between the World Wars. Its name means "Sword Neighborhood" in Turkish. It consisted of illegally built small houses and most of its inhabitants were very poor. It was completely demolished in the 1960s to make space for a highway, colleges and other new buildings.

Season two starts on 31st December 1933 and several characters use Zippo lighters, though Zippo was first made in 1936, and the design used in the series was introduced post WWII.