The story of Landell_de_Moura is indeed fascinating. Unfortunately there so many technical errors in the reports that they have to be discounted. It is probable

The story of Landell_de_Moura is indeed fascinating. Unfortunately there so many technical errors in the reports that they have to be discounted. It is probable that his wireless claims actually refer to light-beam communications.. If any one was first, it had to be David Edward Hughes. https://en.wikipedia.org/wiki/David_Edward_Hughes https://en.wikipedia.org/wiki/David_Edward_Hughes Luckily a lot of new material has surfaced recently, including his original notes and apparatus.