1668 (MDCLXVIII) ebile ngwagamolele wa go thoma ka Sontaga, ngwaga wa bosenyane ngwagengsome wa 1660s, ngwaga wa bomasometshela seswai ngwagengkgolo wa Ngwagakgolo 17, le ngwaga wa bomakgolo tshela masometshela seswai ngwagengkete wa Ngwagakete 2.