The Bahai religion, founded in the mid-19th century, focuses on the unity of all humanity and the belief that all religions come from one God.

In "A Curable Romantic" by Joseph Skibell, the novel delves into the life of Jakob Sammelsohn, an oculist in Vienna who encounters historical figures like Sigmund Freud and L. L. Zamenhof while exploring themes of love, language, and history.