Haiku

A haiku has three lines. The first and last lines have five syllables while the third line has seven. The topics are usually of nature. Haiku originated as "tanka" in Japan during the 9th to 12th century. The first verse was called a "hokku". In the 19th century it was staring to be recognized as individual form of poetry. The word "haiku" comes from "hokku."

    

Buson

Blowing from the west
Fallen leaves gather
In the east.

    

http://www.haiku-poetry.org/famous-haiku.html