When did numerous short-range wireless protocols start showing up? I know Bluetooth was first invented by Ericsson in 1994 from reading up resources on the Internet. Thanks in advance.
The Infrared Data Association (IrDA) was established in 1993, I guess you could call their standards a type of wireless.
This document may give you some pointers. It discusses the sharing of radio frequencies, which is needed for this kind of radio communication.