My daughter-units were using our church key to open several
bottles of soda today. Daughter-unit Alpha was really intrigued
by it -- the design, functionality, everything about it -- and
asked me why it was called a "church key." I hated to admit
it... But I didn't have an answer. Gooja didn't help narrow
down that bit of trivia.

Why is it called a church key?

Many thanks.

The Ranger