Guglielmo Marconi's wireless technology is the technology that has shaped the modern world. At the start, the major purpose for wireless was meant for sending individual messages in Morse code, with much greater flexibility than the established telegraph system, which relied on connections by wires.
Wire-less, on the other hand, would have military applications and would be especially valuable for communications at sea. However, there was nothing to stop people listening in and, with the coming of voice messages, the public grew excited for a completely different concept in communication: Broadcasting.