 The new orthography was however not broadly adopted initially and was used inconsistently in the bilingual periodicals of Manila until the early 20th century.The revolutionary society Kataás-taasan, Kagalang-galang Katipunan ng̃ mg̃á Anak ng̃ Bayan or Katipunan made use of the k-orthography and the letter k featured prominently on many of its flags and insignias.In 1937, Tagalog was selected to serve as basis for the country's national language.