1673 (MDCLXXIII) ebile ngwaga wa go thoma ka Sontaga, ngwaga wa bone ngwagengsome wa 1670s, ngwaga wa bomasomešupa tharo ngwagengkgolo wa Ngwagakgolo 17, le ngwaga wa bomakgolo tshela masomešupa tharo ngwagengkete wa Ngwagakete 2.