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
Mora (linguistics) moraic system of writing. For example, in the two-syllable word "mōra", the "ō" is a long vowel and counts as two morae. The word is written in three symbols, モーラ, corresponding here to , each containing one mora. Such scholars also argue that the 5/7/5 pattern of the haiku in modern Japanese is of morae rather than syllables. The Japanese syllable-final "n" is also said to be moraic, as is the first part of a geminate consonant. For example, the Japanese name for "Japan", 日本, has two different pronunciations, one with three morae ("Nihon") and one with four ("Nippon"). In