Darwin in the Galapagos
Sep 15 HMS Beagle with Charles Darwin on board reaches the Galapagos Islands
- Sep 17 Charles Darwins lands on Chatham in Galapagos archipelago
- Sep 20 Farroupilha's Revolution begins in Rio Grande do Sul, Brazil.
- Sep 23 HMS Beagle sails to Charles Island in Galapagos archipelago
- Sep 26 Gaetano Donizetti's opera "Lucia di Lammermoor" premieres at the Teatro di San Carlo in Naples, Kingdom of the Two Sicilies (now Italy)