Nikola Tesla died on January 7, 1943, at the age of 86, in room 3327 of the New Yorker Hotel in New York City. The official cause of death was coronary thrombosis, a type of heart attack
. Tesla had been living alone and in relative obscurity for many years before his death, suffering from poor health and financial difficulties
. After his death, the U.S. government quickly confiscated Tesla's papers and belongings due to wartime security concerns, as there was interest in his work on inventions like the so-called "death ray"
. Despite some conspiracy theories, the most credible accounts attribute his death to natural causes related to heart failure
. In summary, Nikola Tesla died peacefully in his sleep from coronary thrombosis in 1943, alone and financially strained, with his legacy and inventions gaining renewed recognition only after his death
