Ngwagakete: Ngwagakete 2
Mengwagakgolo: Ngwagakgolo 19Ngwagakgolo 20Ngwagakgolo 21
Mengwagasome: 1900s  1910s  1920s  – 1930s –  1940s  1950s  1960s
Mengwaga: 1928 1929 193019311932 1933 1934

1931 (MCMXXXI) ebile ngwaga wa go thoma ka Labone, ngwaga wa bobedi ngwagengsome wa 1930s, ngwaga wa bomasometharo tee ngwagengkgolo wa Ngwagakgolo 20, le ngwaga wa bomakgolo senyane masometharo tee ngwagengkete wa Ngwagakete 2.