  The word "cosmopolitan" is often used in a vernacular sense to refer to places where people of various ethnic, cultural and/or religious backgrounds live nearby and interact with each other , diverging from the strict definition of the concept . Philosophical roots Diogenes Cosmopolitanism can be traced back to Diogenes of Sinope (c. 412 B.C.), the founding father of the Cynic movement in Ancient Greece.
<meaning-changed>   The word "cosmopolitan" is often used in a vernacular sense to refer to places where people of various ethnic, cultural and/or religious backgrounds live nearby and interact with each other , diverging from the strict definition of the concept . Philosophical roots Diogenes Cosmopolitanism can be traced back to Diogenes of Sinope (c. 412 B.C.), the founding father of the Cynic movement in Ancient Greece.
 By comparison, Immanuel Kant envisioned a cosmopolitan world where armies were abolished and humans were governed under a representative global institution. In all instances, proponents of cosmopolitanism share an emphasis that all humans should form one cohesive and united community. The word "cosmopolitan" is often used in a vernacular sense to refer to places where people of various ethnic, cultural and/or religious backgrounds live nearby and interact with each other , diverging from the strict definition of the concept . Philosophical roots Diogenes Cosmopolitanism can be traced back to Diogenes of Sinope (c. 412 B.C.), the founding father of the Cynic movement in Ancient Greece.