When was wireless first invented?

In 1864 , James Clerk Maxwell postulated wireless propagation, which was verified and demonstrated by Heinrich Hertz in 1880 and 1887, respectively. Marconi and Popov started experiments with the radio-telegraph shortly thereafter, and Marconi patented a complete wireless system in 1897.

Jagadish Chandra Bose , the Indian scientist who pioneered wireless communication in the 1890s.

1 : having no wire or wires specifically : operating by means of transmitted electromagnetic waves a wireless remote. 2a : of or relating to radiotelephony, radiotelegraph, or radio a wireless phone. b : of or relating to data communications using radio waves wireless Internet access. wireless.