We list for you the top 5 conspiracy theories of all time – incidents that were grand and lustrous in their own sense but allegedly tampered, counterfeit and the living examples of how machinations can in fact be concealed in the veil of accomplishment, or grief. Humans are born with an innate desire to achieve, better than oneself for some, better than the competitors for the other. The desire is in itself a success as it breeds the best in you. But for those who aren't able to, alternatives are many, howsoever underhand and immoral. There are multiple conspiracy theories floating around about the origin of AIDS. Two of the most popular have been listed below. In the first theory, proponents claim that AIDS is a biological weapon created for the Pentagon.