Who invented the radio? Start by asking which radio
A radio receiver, a wireless telegraph and a broadcasting service have different histories. The invention question becomes clearer when we separate them.
First define the object
“Radio” can mean a physical receiver, a method of communication or a scheduled service of programmes. Asking who invented it without defining the object invites a misleading single-name answer. An experiment that detects electromagnetic waves does not yet provide a household with music or news.
Several connected contributions
Maxwell's theory and Hertz's experiments belong to the scientific story of electromagnetic waves. Practical systems then needed ways to produce, detect and control signals. Marconi and Braun shared the 1909 Nobel Prize in Physics for contributions to wireless telegraphy. The award was not a declaration that one person had invented every part of a modern receiver.
A receiving set has its own chain of tasks: collect a signal, select a station, recover the information and make it audible. The Science Museum Group's crystal receiver, dated around 1920–1925, lets us examine a particular surviving object rather than imagine a universal “first radio”. Its date is the date of that object, not the birth date of all radio reception.
Try a better museum question
Ask what an instrument could receive, who could operate it and what infrastructure it depended on. Then compare it with today's browser: the listener still selects a programme, but the network and decoding process have changed. Our receiver exhibit introduces these distinctions.