Punctuation centuries meant that a standard system of punctuation was urgently required." The introduction of a standard system of punctuation has also been attributed to the Venetian printers Aldus Manutius and his grandson. They have been credited with popularizing the practice of ending sentences with the colon or full stop, inventing the semicolon, making occasional use of parentheses and creating the modern comma by lowering the virgule. By 1566, Aldus Manutius the Younger was able to state that the main object of punctuation was the clarification of syntax. By the 19th century, punctuation in the western world had evolved "to classify
Punctuation Rs. 20/- or Rs. 20/= implies 20 rupees whole. Thai did not use punctuation until the adoption of punctuation from the West in the 20th century. Blank spaces are more frequent than full stops or commas. "Further information: Armenian punctuation, Chinese punctuation, Hebrew punctuation, Japanese punctuation and Korean punctuation." In 1966, the French author Hervé Bazin proposed a series of six innovative punctuation marks in his book "Plumons l'Oiseau" ("Let's pluck the bird", 1966). These were: An international patent application was filed, and published in 1992 under Work Order (WO) number WO9219458, for two new punctuation marks: the "question comma"