Jan 2 1921- a first

A day late but still interesting-

1921 - The first religious program heard over the radio was broadcast from Calvary Episcopal Church of Pittsburgh over local radio station KDKA. (The first licensed radio station in the US, KDKA had been on the air only two months.)

http://www.gospelherald.net/article/faith/46920/jan-2-in-christian-history.htm