고조선, 역사는 살아있다 [History Lives On – Gojoseon] Episode 7: Ancient Korea’s Astronomy Nation – Star Maps Carved in Stone 10/20/2025
고조선, 역사는 살아있다 [History Lives On – Gojoseon] Episode 8: Gojoseon’s Hierarchical Society – Kings, Ministers, and the People 10/20/2025
