Although observations and attempted treatments of diabetes date back to ancient times, the most important milestone occurred when a new treatment—insulin injection—was first successfully used on January 23, 1922. Written by Jim Harris. Narration by Dr. Nicholas B. Breyfogle. A textual version of this podcast is available at https://origins.osu.edu/read/first-insulin-injection-treatment-diabetes. Production by Katherine Weiss, Dr. Nicholas B. Breyfogle, and Laura Seeger. This is a production of Origins: Current Events in Historical Perspective at the Goldberg Center in the Department of History at The Ohio State University and the Department of History at Miami University. Be sure to subscribe to our channel to receive updates about our videos and podcasts. For more information about Origins: Current Events in Historical Perspective, please visit origins.osu.edu.