Pseudoarchaeology (sometimes refered to as pseudohistory), a form of pseudoscience, refers to the ideologically-driven, usually sensational interpretation of the past outside of a critical, scientific framework. Pseudoarchaeology also includes forms of protosciences.
Pseudoarchaeology is used by many to refer to religious perspectives they see as non-scientific (Creationism often receives this label) as well as to the pursuit of untestable hypotheses such as the influence of UFOs or ancient astronauts on past civilizations. Pseudoarchaeology includes the investigation of theories generally discarded by scientific investigators, such as the existence of Noah's Ark on Mount Ararat, lost continents such as Atlantis or Lemuria, and the idea of direct contact between the ancient civilizations of Egypt and the Maya. It can also include scientific investigations in which the ability to maintain a critical, scientific perspective is diminished by religious belief. An example that is frequently cited would be research on the Shroud of Turin.
Pseudoarchaeology was used to describe the expeditions to find the ancient greek city of Troy. Troy, as described in the poems of Ancient Greek, was discovered by German archaeologist Heinrich Schliemann. Schliemann declared one of these cities to be the city of Troy, and this identification was then accepted.