Final answer:
The modern form of haiku has not had the same name since the 1600s; the term 'haiku' became popular in the 19th century. Haikus are three-line poems focusing on nature with a 5-7-5 syllable count, while tankas have a 5-7-5-7-7 syllable structure and also often relate to nature or emotions.
Step-by-step explanation:
The statement that the modern form of haiku has had the same name since the 1600s is false. The term 'haiku' became popular during the 19th century when the poet Masaoka Shiki renamed the traditional 'hokku' to 'haiku.' The haiku is known for its simple form, consisting of three lines with a 5-7-5 syllable count, typically focusing on nature or the seasons. This poetic form distinguishes itself by being concise yet profoundly expressive.
In contrast, a tanka, or Waka, consists of five unrhymed, non-metrical lines with a syllable count of 5-7-5-7-7, focusing on nature or strong emotions. Both haiku and tanka spotlight the importance of form in poetry but have distinct structures and styles that have evolvements over time. Other poetic forms based on the stanza, such as the quatrain, often include a rhyme scheme such as AABB or ABBA.