Black Swans
The phrase âBlack Swanââs earliest documented use is in Latin, from the 2nd-century Roman poet Juvenalâs characterization in his Satire VI of something being ârara avis in terris nigroque simillima cygnoâ (âa bird as rare upon the earth as a black swanâ). When the phrase was coined, the black swan was presumed by Romans not to exist. The English phrase ârare birdâ, meaning an odd or exoticâŚ
















