According to Official Guinness Records,
The first patent for a sytem of communication by means of electro-magnetic waves was granted on 2 June 1896 to the Italian-Irish Marchese Guglielmo Marconi GCVO(Hon) (1874-1937). A public demonstration of wireless transmission of speech was given in the town square of Murray, Kentucky, USA in 1892 by Nathan B. Stubblefield. He died destitute on 28 March 1928.
For a complete list of 1896 records, please visit 1896 Guinness Records in Italy.