If relativity theory is correct, no object can travel forward in time at a speed greater than the speed of light  Yet quantum mechanics predicts that the tachyon, a hypothetical subatomic particle, travels faster than light
Thus, if relativity theory is correct, either quantum mechanics' prediction about tachyons is erroneous or tachyons travel backward in time
Alexander the Great was buried either in Alexandria or in Siwa, Egypt. However, the burial place is more likely to be Siwa. A limestone table engraved by Ptolemy, Alexander's lieutenant, was found in Siwa, attesting to Alexander's burial place.