Haiku in English founded National Haiku Writing Month, also known as NaHaiWriMo. It has been held in February of each year, starting in 2011, with the objective to write at least one haiku per day all month long—"the shortest month of the year for the shortest genre of poetry," according to Welch. Although the vast majority of haiku published in English are three lines long, variants also occur. The most common variation from the three-line standard is one line, sometimes called a "monoku". It emerged from being more than an occasional exception during the late 1970s. The one-line form, based on an analogy
Japanese pitch accent that of Kōchi in Shikoku. Japanese pitch accent also varies in how it interacts with syllables and morae. Kagoshima is a purely syllabic dialect, while Osaka is moraic. For example, the low-tone unaccented noun "shimbun" 'newspaper' is in Kagoshima, with the high tone spread across the entire final syllable "bun," but in Osaka it is , with the high tone restricted to the final mora "n". In Tokyo, accent placement is constrained by the syllable, though the downstep occurs between the morae of that syllable. That is, a stressed syllable in Tokyo dialect, as in "kai" 'shell' or "san" 'divining