“September 1, 1939,” poem by W. H. Auden, https://www.poets.org
This is the longest poem I’ve memorized so far. It has nine stanzas, each of which has eleven lines. There’s a regular rhyme scheme. I detect a three-beat cadence. I read somewhere that Auden repudiated this poem in later life, but I have an affection for it. It speaks not only to his moment but, eerily, to ours as well.