EntityQ12351475· pop 7· linked from 3 articlesLéon BollackSign in to saveFrench trador and inventor of BolakConnectionsEsperantoEntityRhineland-PalatinateEntityH. G. WellsEntityIdoEntityconstructed languageEntityVolapükEntityBad KreuznachEntityBolakEntityA Modern UtopiaEntityAlex VirotEntityCategories1859 births1925 deathsConstructed language creatorsFrench Jews