There have been visions of smart, communicating objects even before the global computer network was launched forty-five years ago. As the Internet has grown to link all signs of intelligence (i.e., software) around the world, a number of other terms associated with the idea and practice of connecting everything to everything have made their appearance, including machine-to-machine (M2M), Radio Frequency Identification (RFID), context-aware computing, wearables, ubiquitous computing, and the Web of Things. Here are a few milestones in the evolution of the mashing of the physical with the digital.