 The cult gained popularity in the 2nd century AD, reached a peak under the Severan dynasty in the early 3rd century AD, and died out shortly thereafter.At least nineteen temples (including two discovered in 2000) are known to have been built in Rome and the provinces which, while substantial, is far below the popularity enjoyed by the comparable pseudo-oriental cults of Mithras, Isis or Cybele.Until the late 20th-century, Roman exoticism was usually taken at face value, and Jupiter Dolichenus was therefore like the other pseudo-oriental figures also assumed to have really been a Roman continuation of an oriental figure.