• 1st - 4th c. AD

    It is estimated that the Hortiatis qanat is constructed during the Roman period (at least its masonry with bricks of 4 cm thickness)

  • Middle Byzantine Era

    Restoration works are carried out in the qanat in order to strengthen its structure and perhaps increase its supply.

  • Ottoman Era

    Improvement works and expansion of the qanat are carried out by the direction of Murat II

  • 1918

    The most recent qanat restoration is done by the Thessaloniki Municipality

  • 1939

    Thessaloniki Water Supply and Sewerage Company is established and the qanat comes under its jurisdiction.

  • 1975

    Hortiatis qanat seizes to supply water to the city of Thessaloniki but keeps supplying water to Papanikolaou Hospital, a women’s Monastery outside the city of Panorama, a military camp in the same area and the Hortiatis village.

  • 1985

    The Thessaloniki Water Supply and Sewerage Company disassociates the Hortiatis springs from the qanat, so its supply drops considerably.

  • Today

    The qanat supplies water only to Papanikolaou Hospital

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