1930 (MCMXXX) ebile ngwaga wa go thoma ka Laboraro, ngwaga wa pele ngwagengsome wa 1930s, ngwaga wa bomasometharo ngwagengkgolo wa Ngwagakgolo 20, le ngwaga wa bomakgolo senyane masometharo ngwagengkete wa Ngwagakete 2.