Wolschan was formerly part of the German Empire. In the German Empire, the place was called Olšany.
The place is now called Olšany and belongs to Czechoslovakia.
| Historical place name | Country | Administration | Time |
|---|---|---|---|
| Wolschan | Austro-Hungary | Časlau | before the Treaty of Saint-Germain |
| Volšany | Austro-Hungary | Časlau | before the Treaty of Saint-Germain |
| Olšany | Czechoslovakia | Čáslav | after the Treaty of Saint-Germain |
| Wolschan | German Empire | Tschaslau | 1939 |
| Olšany | German Empire | Tschaslau | 1939 |
| Olšany | Czechoslovakia | Čáslav | 1945 |
| Olšany | Czechoslovakia | Střední Čechy | 1992 |