Ships were used during the Eighteenth Dynasty of ancient Egypt to transport obelisks from the quarry to their destination. Fifteen centuries later, the Romans used ships to transport obelisks across the Mediterranean to Rome.
Today, eight ancient Egyptian obelisks stand in Rome, though not in their original places. The first of the obelisks, the 263-ton Flaminian obelisk, was transported from Heliopolis – modern-day Cairo – in 10 BCE. while the last, the 500-ton Lateran obelisk, was transported from Karnak.
Ancient Egypt
The earliest obelisk ships were built in Ancient Egypt to transport obelisks via the Nile from the quarries to their destination.
During the reign of Thutmose I, Ineni was granted superintendence of the king's building projects, which included the erection of two obelisks. A surviving text fragment documents that the obelisk ship had a length of ~63 metres (207 ft) and a width of ~21 metres (69 ft).[1]
I (Ineni) inspected the erection of two obelisks ... built the august boat of 120 cubits in its length, 40 cubits in its width, in order to transport these obelisks. (They) came in peace, safety and prosperity, and landed at Karnak ... of the city. Its 'track' was laid with every pleasant wood.
In the 19th dynasty, Seti I commissioned numerous works, including multiple obelisks, and large barges to transport them. A rock stela at Aswan states:
His Majesty has ordered the commissioning of multitudinous works for the making of very great obelisks and great and wondrous statues in the name of His Majesty. He made great barges for transporting them, and ships crews to match them (for) ferrying them from the quarry while the officials and transport-men hastened and his eldest son was before them doing what is beneficial for His Majesty.[3]
Pliny the Elder described how an obelisk was loaded onto a ship.
For this purpose, a canal was dug from the river Nile to the spot where the obelisk lay; and two broad vessels, laden with blocks of similar stone a foot square, the cargo of each amounting to double the size, and consequently double the weight, of the obelisk, were brought beneath it; the extremities of the obelisk remaining supported by the opposite sides of the canal. The blocks of stone were then removed, and the vessels, being thus gradually lightened, received their burden.[4]
Destruction of ships
There is little evidence of the great ships that carried the large obelisks across the Mediterranean. One of the two ships that carried the Vatican obelisk was purposely sunk by the emperor Claudius to build the Portus harbor; the other burned down during Caligula’s reign (36–41 CE) while on display at the Puteoli harbor.[4]
Naval architecture
Three Roman ships were built to transport one obelisk. The two aft ships were of rectangular shape; they were 37 meters in length and 5 meters in width. The two ships were held together by longitudinal beams, while the obelisk was tied to these longitudinal beams and held stationary underwater. The third ship, a larger trireme, was in the front and was tied to the two larger ships carrying the obelisk. The third ship’s purpose was to help steer the two aft ships and have rowers and sail power the ship across the Mediterranean.
Modernity
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Brand, Peter J. (1997). "The 'Lost' Obelisks and Colossi of Seti I". Journal of the American Research Center in Egypt. 34: 101–114. doi:10.2307/40000801. JSTOR40000801.
Naville, Edouard (1908). The temple of Deir el Bahari (Band 6): The lower terrace, additions and plans. Vol. 6. London: Egypt Exploration Fund. doi:10.11588/DIGLIT.4147.
Torr, Cecil (1895). Ancient Ships. Cambridge: University Press.
Vinson, Steve (1994). Egyptian Boats and Ships (1st ed.). Buckinghamshire: Shire Publications. ISBN0-7478-0222-X.
Wirsching, Armin (2000). "How the Obelisks Reached Rome: Evidence of Roman Double-Ships". The International Journal of Nautical Archaeology. 29 (2): 273–283. doi:10.1111/j.1095-9270.2000.tb01456.x. S2CID162710923.