Ngwagakete: Ngwagakete 2
Mengwagakgolo: Ngwagakgolo 19Ngwagakgolo 20Ngwagakgolo 21
Mengwagasome: 1900s  1910s  1920s  – 1930s –  1940s  1950s  1960s
Mengwaga: 1927 1928 192919301931 1932 1933

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.