Did the first attempt to carry out radio transmission experiments take place in Northern Ireland? According to elderly inhabitants Marconi arrived in Ballycastle with his right-hand man, George Kemp and young Edward Glanville, armed with strange wire devices in 1899. Details of this historic event remain unclear, as accounts also tell of the unfortunate death of Edward Granville taking place on Sunday 21st July 1894 when he tragically fell off a cliff on Rathlin Island.