Mesoamerican Long Count calendar Mesoamerican Long Count calendar The Mesoamerican Long Count calendar is a non-repeating, vigesimal (base-20) and base-18 calendar used by several pre-Columbian Mesoamerican cultures, most notably the Maya. For this reason, it is often known as the Maya (or Mayan) Long Count calendar. Using a modified vigesimal tally, the Long Count calendar identifies a day by counting the number of days passed since a mythical creation date that corresponds to August 11, 3114 BCE in the Proleptic Gregorian calendar. The Long Count calendar was widely used on monuments. The two most widely used calendars in pre-Columbian Mesoamerica, were the 260-day Tzolk'in
Fixation (psychology) a normal childhood stage; while other post-Freudians explored the role of fixation in aggression and criminality. Fixation (psychology) "Fixation" () is a concept (in human psychology) that was originated by Sigmund Freud (1905) to denote the persistence of anachronistic sexual traits. The term subsequently came to denote object relationships with attachments to people or things in general persisting from childhood into adult life. In "Three Essays on the Theory of Sexuality" (1905), Freud distinguished the fixations of the libido on an incestuous object from a fixation upon a specific, partial "aim", such as voyeurism. Freud theorized that some humans may