Dr. Nikola Tesla conducted a demonstration in 1898 at Madison Square Garden in New York where he navigated a remote controlled boat using a wireless command post
The World Columbian Expo turned out to be a huge success. In its six-month run, over 28 million (2.8 crore) people visited the fair.
On 2nd June 1893, he met the young Serbian King, Alexander Obrenovic. Dr. Nikola Tesla told him that electricity will have to be introduced in Belgrade city. The King was fascinated by Dr. Tesla's ideas and demonstrations.
With strong support and faith in God, Dr. Tesla steadily recovered from the loss of his mother and returned back to New York where his laboratory and his work awaited him