Skip to content
بایگانی کلیدواژه Sun and Tetrapylon

The Sun in Tetrapylons

A Report on Discovering the Relationship between Tetrapylons, Time and Variation in the Declination of the Sun

The Sun in TetrapylonsReza Moradi Ghiasabadi is a well-known Iranian researcher with a novel insight into History and Archaeology. After becoming familiar with his works, I asked him to let me translate the report of one of his research projects explaining his theory on the functionality of the Persian tetrapylons as solar structures. This theory has been confirmed by some experts and many evidences, validating it, have been found. The first part of this book is the translation from the last Persian edition of the book The Persian Tetrapylons published in 2010. The second part of this book is published herein for the first time except Chapter 13, Heidentor Tetrapylon, which has been published as a paper in Journal of Persia Digest (2012).

Ghiasabadi begins The Persian Tetrapylons with an old poem: “That building on the hillside is a place for time and time measurement.” This poem is from Shahnameh, authored by Ferdowsi, who is the greatest Persian epic poet in the tenth century AD. Ferdowsi narrates the ancient historical-storied events of Iranian people in Shahnameh. Ferdowsi quotes the mentioned poem from Zal, who is a Persian mythological character whose functions relate to the time and Zurvan. In fact, Ghiasabadi starts his book with a thousand-year-old poem which describes a building on a hillside with calendrical functionality, so this poem can be an allegory of a tetrapylon. […]

Recognizing Solar Relations at Heidentor Tetrapylon in Austria


A European tetrapylon of the Roman Empire from the middle of the 4th century AD has been identified as the first tetrapylon used for calendric purposes in Europe, and some other sites are being studied. I believe that just as the study of the Persian tetrapylons led to the finding related to this Roman tetrapylon, special features of Roman tetrapylons will also help to reveal unexplored aspects of Persian tetrapylons. This tetrapylon is located in eastern Austria and is called Heidentor (Pagan Gate or Heathens’ Gate). The name Heidentor is an evolved form of Heydnisch Tor, which means “Pagan Gate” in German. Having been built so early in the Christian Era, it is believed to have been constructed by pagan non-Christians (probably followers of Mitra). […]

Niasar Tetrapylon


Chartaqi of Niasar located near the city of Kashan (Fig. 1.1) and was constructed during the late Parthian or early Sassanid Dynasties′ eras. Its plan is square in shap. There are, however, some theories that state that in ancient times Zorvanists used this place for their religious practices. Near this Chartaqi, there is a shrine and holy tree (plantain) and also a fountain that makes it some what a holy place. Also near Chartaqi, there is a modern observatory. Today Niasar is place for people who like astronomy in Iran. Every year Chartaqi of Niasar hosts a large number of Iranians that gather to cherish their ancestral way of life and to mark the observance of sunrise in summer and winter solstice (Fig. 3.1, 3.2). […]



web analytics