​Sources and additional reading 
Tesla biography
What you didn't know about Tesla
Rise and Fall of Tesla

Tesla's predictions for 21st century
Tesla the greatest geek 
FBI and Tesla​

As a visionary, Tesla envisioned the X-ray; radar technology; remote control; radio signals; and a particle beam weapon, the “death beam,” which greatly interested the FBI. Tesla also predicted the smart phone, wireless internet; and electric energy transmission over wires;
In 1898 Tesla planned to create a worldwide wireless transmission system known as the Wardenclyffe Tower, which would provide the sharing of information and free electricity  throughout the world. Financier J.P. Morgan invested in the idea, but money ran out before its completion. Many of Tesla’s ideas and discoveries were scavenged by others. Marconi, credited with the radio, used 17 of Tesla’s patents (as claimed by Tesla). 
Another rival, Thomas Edison, created problems for Tesla early in his career. Tesla first worked with Edison when he arrived in the United States, developing Edison’s idea of direct current, but personality differences and goals soon caused them to part ways. Edison concentrated on direct current, business marketing and financial success, while Tesla was more interested in science and the superior AC current. Once they parted, Tesla Electric Light Company was established and AC became the basis for several inventions. George Westinghouse of the Westinghouse Corporation teamed up with Tesla, and they were chosen to supply light for an exposition in Chicago. This demonstration of the power of AC brought well deserved renown to Tesla. Tesla continued his experiments and discoveries, but it was his desire to supply the world with free electric power that was the beginning of his downfall. Tesla died in 1943, but lives on through his discoveries.

Nikola Tesla

Genius, Physicist, Inventor, Visionary, Eccentric  1856-1943

Alternating current (AC), AC motor, Tesla coil, AC hydro electric power plant, rotating magnetic field, Xray, radar technology, remote control, radio signals, free electricity for the world, death beam, smart phone, video calling, wireless internet—all ideas or discoveries credited to Nikola Tesla.
Born in Croatia in 1856, Nikola Tesla created a legacy that lives on today in his numerous discoveries and inventions. As a youngster Tesla was influenced by his mother who herself was an inventor of small household appliances. He developed a photographic memory and the ability to visualize in three dimensions. He was educated in Croatia, Austria, and Prague before moving from Europe to America in 1884 at the age of 28. While still in Budapest, he had the idea for the induction motor.
Once in the United States, Tesla worked briefly with Thomas Edison before splitting off to work on his own ideas. Tesla died in 1943, a penniless recluse living in a small New York hotel and befriending and feeding pigeons. During his lifetime Tesla discovered and developed the world altering and worldwide standard, alternating current, and the AC motor, “one of the 10 greatest discoveries of all time.” He created the Tesla coil, the foundation for wireless technology that led to neon and fluorescent lights and wireless technology. He designed the first hydro-electric power plant in the United States at Niagra Falls; the plant provided power to Buffalo N.Y., but was replaced by a larger plant on the same site. His development of the rotating magnetic field became the basis of most AC machinery.