QSL cards on exhibit at Harford Community College

(Aegis) Before cell phones and Facebook, there was amateur — or ham — radio. These radio operators would connect with other people around the world and share what daily life was like on their side of the country — or sometimes globe — all from the comfort of their own homes.
One or several radios would take up space on kitchen tables or office desks where plates and papers would normally be and act as the base of these experimental radio stations, called "shacks," just waiting for another person's voice to come in through the airwaves.
Indeed, it's a hobby that persists in some circles, despite the emergence of other instant communication venues like the Internet. Continued

Photo: Radio Age Magazine, Sept 1926, via Library of Congress.