"What was the first sensor network? Thinking back, I bet most people would guess the early demos by Berkeley and UCLA at places like the Intel Developer's Forum; the Twentynine Palms air-dropped mote demo; and Great Duck Island. These were all around 2002 or so. It turns out this is off by about 35 years -- the first bona fide wireless sensor network was actually deployed in Vietnam, along the Ho Chi Minh Trail, in 1967. It was called Igloo White."
Sensor drop from Helicopter during Operation Niagara I
Image Courtesy: Wikipedia/ U.S. Airforce Center of Military History
Read More: Matt Welsh: Sensor networks, circa 1967