Two UAVs, one operated by NASA and the other operated by Australian start-up Flirtey, have made deliveries in an FAA-sanctioned trial.

On the day, a remote piloted NASA plane flew the packages of medical supplies from the Tazewell County airport. These medical supplies were then placed onto the small Flirtey drones for the short flight to the Wise County Fairgrounds. Throughout the course of the day, the Flirtey hexacopter made six trips to the Remote Area Medical Clinic delivering its payload without touching down.
http://www.startupdaily.net/2015/07/flirtey-beat-amazon-market-launching-first-commercial-drone-deliveries-us/

It looks like the cargo was loaded by hand into the Flirtey UAV, and the video shows it delivering the package by lowering it attached to a rope. The article says the UAV is autonomous, but I figure it is being controlled remotely by a human.

It’s a historical event, for sure, however there’s a long way to go!