Chinese punctuation uses a different set of punctuation marks from European languages, although the concept of punctuation was adapted in the written language during the 20th century from Western punctuation marks. Before that, the concept of punctuation in Eastern Asian cultures did not exist at all.[1] The first book to be printed with modern punctuation was Outline of the History of Chinese Philosophy (中國哲學史大綱) by Hu Shi (胡適), published in 1919. Scholars did,[2] however, annotate texts with symbols resembling the modern '。' and '、' (see below) to indicate full-stops and pauses, respectively.[citation needed] Traditional poetry and calligraphy maintains the punctuation-free style.[citation needed] The usage of punctuation is regulated by the Chinese national standard GB/T 15834–2011 "General rules for punctuation" (Chinese: 標點符號用法; pinyin: biāodiǎn fúhào yòngfǎ.[3]