Don Leon is a 19th-century poem attributed to Lord Byron celebrating homosexual love and making a plea for tolerance. At the time of its writing, homosexuality and sodomy were capital crimes in Britain, and the nineteenth century saw many men hanged for indulging in homosexual acts. It is not known who wrote it, although there are several theories. The case for it being written directly from within the Shelley-Byron circle is increasingly gaining ground in the Twenty First century. From internal dating, it was probably written in the 1830s.