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American WW2 submarine found off Japanese coast

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Underwater archaeologists have found the wreck of the USS Albacore off the Japanese coast.

USS Albacore (SS-218) was a Gato-class submarine, which served in the Pacific Theatre of Operations until she was lost at sea in 1944.

Albacore′s keel was laid on 21 April 1941 by the Electric Boat Company in Groton, Connecticut. She was launched on 17 February 1942, sponsored by Mrs. Elise Riles Cutts, and commissioned on 1 June 1942.

During her two years of active service, the USS Albacore was awarded the Presidential Unit Citation and nine battle stars.

Albacore off Mare Island on 28 April 1944 – Image Credit : U.S. Navy – Public Domain

On the 24th October, 1944, the Albacore left Pearl Harbor to patrol the Japanese coast. After loosing all contact with the submarine, the Albacore was presume lost with all hands and was stricken from the Naval Vessel Register.

According to Japanese naval records, a submarine (presumed to be the Albacore) exploded after it struck a mine of the shores of Hokkaidō on 7 November 1944.

A sonar survey of the area in 2022 by Dr. Tamaki Ura of the University of Tokyo, detected what appeared to be a submarine hull 7 kilometres east of Hakodate. A remotely operated underwater vehicle to photographic and video evidence of the wreck site, which were sent to the Naval History and Heritage Command at the historic Washington Navy Yard for identification.

In a recently issued press release, the Naval History and Heritage Command has confirmed that the submarine is indeed the USS Albacore, based on several key features of a late 1944 Gato-class submarine, including documented modifications of the SJ Radar dish and mast, a row of vent holes along the top of the superstructure, and the absence of steel plates along the upper edge of the fairwater.

“As the final resting place for Sailors who gave their life in defense of our nation, we sincerely thank and congratulate Dr. Ura and his team for their efforts in locating the wreck of Albacore,” said NHHC Director Samuel J. Cox, U.S. Navy rear admiral (retired). “It is through their hard work and continued collaboration that we could confirm Albacore’s identity after being lost at sea for over 70 years.”

United States Navy

Header Image Credit : United States Navy

This content was originally published on www.heritagedaily.com – © 2023 – HeritageDaily

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Archaeology

Egypt’s first pyramid was constructed using hydraulic lift

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A recent study, published in the journal ResearchGate, proposes that the Pyramid of Djoser could have been constructed using hydraulic lift.

The Pyramid of Djoser, also known as the Step Pyramid, is a proto-pyramid built as the final resting place of Djoser, the first or second pharaoh of Egypt’s 3rd Dynasty (2670–2650 BC) during the Old Kingdom period.

The pyramid rises from the Saqqara plateau in six steps to a height of around 60 to 62 metres, serving as the centre of a vast mortuary complex.

Due to the absence of authentic sources from the pyramid architects’ working sphere, there is currently no confirmed comprehensive model for the method used in the pyramid construction.

The prevailing theory suggests that the heavy stone blocks were transported on apparatuses such as rollers, and raised to height using a series of ramps.

In the study, a survey of watersheds near to the pyramid indicate that the Gisr el-Mudir (enclosure) has features of a check dam for trapping sediment and water. Furthermore, the topography beyond the “dam” shows a possible ephemeral lake west of the Djoser complex, and water flow inside the moat surrounding it.

The study authors explain: “In the southern section of the moat, we show that the monumental linear rock-cut structure consisting of successive, deep compartments, combines the technical requirements of a water treatment facility: a settling basin, a retention basin, and a purification system.”

Based on this finding, the study proposes that the Gisr el-Mudir and moat’s inner south section worked as a unified hydraulic system for regulating flow and improving water quality. In addition, the pyramid’s internal architecture is consistent with a hydraulic elevation mechanism never reported before.

“The ancient architects likely raised the stones from the pyramid centre in a volcano fashion using the sediment-free water from the Dry Moat’s south section. Ancient Egyptians are famous for their pioneering and mastery of hydraulics through canals for irrigation purposes and barges to transport huge stones. This work opens a new line of research: the use of hydraulic force to erect the massive structures built by Pharaohs,” said the study authors.

Please note: This study was submitted to PLOS ONE on December 7, 2023. After two rounds of review by peers, the paper was formally accepted by PLOS ONE on June 27, 2024. Since July 23, 2024, it has been the subject of new consultations and review by the PLOS ONE Editorial Board.

Header Image Credit : Shutterstock

Sources : ResearchGate | Piton, Guillaume. (2024). On the possible use of hydraulic force to assist with building the Step Pyramid of Saqqara. PLOS ONE.

This content was originally published on www.heritagedaily.com – © 2023 – HeritageDaily

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Archaeology

Lost splendour of the Great Synagogue of Vilna rediscovered

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Constructed between 1630 and 1633 in a Renaissance-Baroque style, the Great Synagogue of Vilnius served as the religious centre of a complex of synagogues, mikvahs, and community institutions devoted to Torah study in Vilnius, Lithuania.

According to a press statement by the Israel Antiquities Authority (IAA): “The Great Synagogue of Vilna was the beating heart of the Lithuanian Jewry, which included 12 synagogues and study houses, the community council building, the home of Rabbi Eliyahu – the Vilna Gaon, Kosher meat stalls, the famous ‘Strashun’ library, a bathhouse and more.”

During World War II, the synagogue was looted, burned, and partially destroyed by the Nazis in the holocaust. Soviet authorities completely demolished the remaining structure to build a school, intending to prevent any future restoration of Jewish worship.

Only three original pieces of the synagogue survived the destruction: a door of the Holy Ark, a reader’s desk, and a bas-relief with the Ten Commandments, which are now on display at the Vilna Gaon Jewish Museum.

Image Credit : Israel Antiquities Authority

In a recent study conducted by the IAA, the Association of Lithuanian Archaeology, the Good Will Foundation, and the Jewish Community of Lithuania, archaeologists have rediscovered traces of the synagogue’s decorated walls and remnants of flooring with red, black, and white floral patterns that paved the main hall.

Excavations also uncovered huge water reservoirs to feed halachically pure water to the mikva’ot, and one of the giant pillars that surrounded the Bimah (prayer platform).

Dr. Jon Seligman from the IAA and Justinas Rakas from the Lithuanian Archaeological Society, said: “The magnificent remains we are rediscovering bring back moments in the life of a lost vibrant community.”

Header Image Credit : Israel Antiquities Authority

Sources : IAA

This content was originally published on www.heritagedaily.com – © 2023 – HeritageDaily

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