966. We explore the rise and fall of the letter H: Debates over its name ("haitch" or "aitch"?) and why a once-prestigious pronunciation like "hwhat" now seems old-fashioned.

The "haitch" segment was written by Kate Burridge, a professor of linguistics at Monash University, and Catherine McBride, a professor of psychology at Chinese University of Hong Kong. It originally appeared on "The Conversation" and appears here through a Creative Commons license.