What happens is that every time someone publishes something like this, a small part of it is circled around as rumor, and a few years later, when the origins of it are forgotten, it's considered general knowledge or a fact-ish fact, which is not in the text books because the governments suppressed it.
Yes, this is true and really annoying, for those like me who like to learn about things Tesla actually did and said.
I agree the Tunguska explosion had nothing to do with Tesla, and the stories claiming that are just made-up rubbish. For one thing, they commonly refer to a 'beam' (see the link I posted before.) But unless this was a beam that followed the Earth's curvature (how?) the idea is ridiculous. See image below, I shopped up from google Earth showing locations of Tunguska explosion, and the Wardenclyffe Tower. What, the beam (that disintegrated a bird, they claim) went through more than a third the Earth's diameter with no effect, then emerged to cause the explosion? But if we assume such a strangely acting beam could exist (I'd contemplate this only because of the 'Scalar Wave' pseudo-science stuff), then WHY climb the tower to launch it? If it's going to go through 1/3 of the planet with no effect, then firing from ground level should be fine, you'd think. Oh, and pretty accurate 'ranging', to achieve an explosion a few Km up in the atmosphere on nearly the other side of the globe. Considering that he was supposedly way off in his pointing accuracy.
It's just silly. The only remarkable thing here is that anyone would claim this. Especially given that the Tunguska site has at least two solidly established impact craters of fragments of the space object that caused the airburst. See
http://en.wikipedia.org/wiki/Tunguska_eventAnyway, back to real events. Here's some Wardenclyffe Tower timeline, from
http://www.teslauniverse.com/nikola-tesla-timelineYear: 1901
December, 11th: Tower Construction Begins
Construction finally begins for Tesla's most ambitious project, The World-Wide Wireless System known as Wardenclyffe Tower.
Year: 1903
July, 15th: Wardenclyffe Testing Begins
"The New York Sun" reported the strange goings-on at Tesla's transmitter. It stated, "all sorts of lightning were flashed from the tall tower and poles," and "the air was filled with blinding streaks of electricity which seemed to shoot off into the darkness on some mysterious errand."
Year: 1906
Wardenclyffe Workers Laid Off
Tesla made great efforts to obtain funding for the Wardenclyffe project after J.P. Morgan withdrew his support, but was unsuccessful. Unable to pay his employees, he was forced to lay them off and construction of the tower ceases.
Year: 1912
April, 14th: John Jacob Astor Dies
John Jacob Astor was Tesla's wealthiest and most generous investor. He invested $100,000 in 1899 for Tesla to, as he understood it, further develop and produce a new lighting system. Tesla instead, used the money to fund his Colorado Springs experiments. Mr. Astor was understandably unhappy with Tesla's deception and avoided him for several years. They did later reconcile and worked together on aircraft and propulsion systems in 1908. Unfortunately, Mr. Astor and his wife were aboard the "Titanic" which began to sink after colliding with an iceberg. Mr. Astor was able to help his wife into a lifeboat but was unable to join her. His body was found a few days later and is buried in Trinity Church Cemetery in New York City."
Tower Equipment Repossessed
Westhinghouse, Church, Kerr & Company removed the machinery from the building, as part of their judgment of $23,500.
Year: 1915
Wardenclyffe Deed Surrendered
In order to keep a roof over his head, Tesla had given two mortgages on Wardenclyffe to George C. Boldt, proprietor of the Waldorf-Astoria, to secure payment of hotel bills amounting to almost $19,000.00. Tesla requested that they not be recorded, fearing that all his projects would be destroyed if the matter became public. He was unable to make any payments at all, and was forced to sign the deed over to Waldorf-Astoria, Inc., through a silent intermediary.
Year: 1916
Tesla Declares Bankruptcy
Even though Tesla had some minor successes, he continued to fall deeper and deeper into debt primarily due to his high overhead. He was called into the state supreme court for $935.00 in unpaid taxes on the Wardenclyffe property. Under oath before Justice Finch, Tesla revealed that he was essentially penniless and owned no real assets. "New York World" ran an embarrassing article exposing Tesla's financial crisis.
Year: 1917
July, 4th: Wardenclyffe Tower Destroyed
Reported in the media as being suspected of being used by German spies, the tower was actually ordered to be destroyed to cover debts incurred by Tesla at the Waldorf Astoria where he lived for almost 20 years.
Year: 1943
January, 7th: Tesla Dies At 86
Tesla died quietly and alone in room #3327 on the 33rd floor of the Hotel New Yorker in New York City. The coroner would later estimate the time of death at 22:30 EST. Tesla was 86 years old.
January, 8th: Maid Finds Tesla Dead
Tesla had placed a "do not disturb" sign on his door on January 5th, 1943. Ignoring the sign, maid Alice Monaghan entered the room to find Tesla dead in his bed. Assistant Medical Examiner H. W. Wembly was called to the scene and after examination of the body, gave his opinion that the cause of death had been coronary thrombosis and that there had been no suspicious circumstances. Tesla's body was taken to the Frank E. Campbell Funeral Home at Madison Ave. and 81st St. A sculptor was commissioned by Hugo Gernsback, a long-time friend and supporter of Tesla, to create a death mask which is now displayed in the Nikola Tesla Museum.
January, 9th: OAP Seizes Tesla Estate
After learning of Tesla's death, the FBI ordered the U.S. Office of Alien Property to seize all of Tesla's belongings. Tesla's entire estate from the Hotel New Yorker, and other New York City hotels, was transported to the Manhattan Storage and Warehouse Company under OAP seal. Dr. John G. Trump, an electrical engineer with the National Defense Research Committee of the Office of Scientific Research and Development, was called in to analyze the Tesla items in OAP custody.