1947
See Wikipedia for what was happening around the world in 1947.
Here are some Old Time Radio episodes that aired in 1947:
Casey, Crime Photographer
20 Minute Alibi
1947-02-20 (6.63 MB) [28:58]
Superman
Knights of the White Carnation [Part 1 of 15] see more episodes
1947-02-26 (4.92 MB) [14:19]
My Friend Irma
Irma Gives Rent Money to Al
1947-04-18 (6.76 MB) [29:32]
Crime Club
Murder On Margin
1947-05-22 (6.67 MB) [29:09]
Crime Club
Murder Makes A Mummy
1947-05-29 (6.74 MB) [29:27]
Quiet Please
The Ticket Taker
1947-06-29 (6.74 MB) [29:27]
Crime Club
Death Deals a Diamond
1947-07-17 (6.71 MB) [29:18]
Mystery in the Air
The Marvelous Barrastro
1947-08-07 (6.64 MB) [28:59]
Quiet Please
Bring Me to Life
1947-08-10 (6.7 MB) [29:16]
Mystery in the Air
The Lodger
1947-08-14 (6.63 MB) [28:57]
Casey, Crime Photographer
Chivalrous Gunman
1947-08-14 (6.12 MB) [26:43]
Mystery in the Air
The Horla
1947-08-21 (6.63 MB) [28:59]
Mystery in the Air
Beyond Good and Evil
1947-08-28 (6.63 MB) [28:57]
Casey, Crime Photographer
The Loaded Dice
1947-09-04 (6.71 MB) [29:18]
Casey, Crime Photographer
The Tobacco Pouch
1947-09-18 (6.47 MB) [28:17]
Plus 112 more episodes locked away in the Random Dispenser!