And back again
Actually, the plural of "haiku" is "haiku", which I find interesting in a Zen-sort of way. I'd be interested to hear what your friend has to say about what I've written so far. You are correct about haiku being older... it was always part of Japanese poetry, but it usually was the initial stanzas of a larger piece of poetry. Basho was the first to pull it out and make it an art form in itself. And it was around the same time it became known simply as "haiku".