The repressive policy of the OGPU-NKVD
Radio broadcasting in rural areas
Decommunisation of place names
Electrification process of Sumy region
Republican Trust Ukrsilprombud
The campaign to eliminate illiteracy
Automobile traffic in the early XX century
Education Society ‘Prosvita’
Putivl Uyezd in the 17th century
Press propaganda on the occupied territories of Ukraine
Anti-church policy in early 1920s
The First Agricultural Exhibition in Sumy