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 consonant and vowel verbs verbs ended in "-hu," which is still seen on occasion in historical kana usage, and thus unambiguously ended in "h". The terms "consonant-stem" and "vowel-stem" come from considering the invariant part of the verb (the verb stem) on the basis of phonemes – concretely, by writing in rōmaji. This is an abstract perspective, as the consonant stem itself never occurs independently, but only with a following vowel, as Japanese words are formed of morae – concretely, writing in kana. For example, while the stem of "yomu" is "yom-," the bare *"yom" is not an independent word. The standard Japanese terms,