"Season of mists and mellow fruitfulness,
Close bosom-friend of the maturing sun;..."
#OTD in 1819.
Emglish poet John Keats wrote the ode "To Autumn." It was published in 1820 in a volume of Keats's poetry that included Lamia and The Eve of St. Agnes. "To Autumn" is the final work in a group of poems known as Keats's "1819 odes".
https://en.wikipedia.org/wiki/To_Autumn
Keats: Poems Published in 1820 at PG:
https://www.gutenberg.org/ebooks/23684