The Chicago International Film Festival is an annual film festival held every fall.
The Erdős number describes the "collaborative distance" between mathematician and another person, as measured by authorship of mathematical papers.
The following are named after Paul Erdős.
Paul Erdős (Erdős Pál; 26 March 1913 – 20 September 1996) was a Hungarian mathematician.
The Man Who Loved Only Numbers is a biography of the famous mathematician Paul Erdős written by Paul Hoffman.