Esperanto has seen a solid production of material in braille since the work of the blind Russian Esperantist Vasili Eroshenko and Harold Brown wrote several modern plays in Esperanto .
The blind Russian Esperantist Vasili Eroshenko wrote and taught in Japan and China in the 1910s and 1920s .
Esperanto has seen a solid production of material in braille since the work of the blind Russian Esperantist Vasili Eroshenko , who wrote and taught in Japan and China in the 1910s and 1920s , and Harold Brown wrote several modern plays in Esperanto .