Tension Siege Engine List
A viewset for viewing and editing Tension Siege Engines.
GET /api/wf/tension-siege-engines/?format=api
{ "count": 344, "next": "https://seshat-db.com/api/wf/tension-siege-engines/?format=api&page=2", "previous": null, "results": [ { "id": 1, "polity": { "id": 137, "name": "af_durrani_emp", "long_name": "Durrani Empire", "start_year": 1747, "end_year": 1826 }, "year_from": null, "year_to": null, "tag": "TRS", "is_disputed": false, "is_uncertain": false, "name": "Tension_siege_engine", "tension_siege_engine": "absent", "comment": null, "description": null }, { "id": 2, "polity": { "id": 134, "name": "af_ghur_principality", "long_name": "Ghur Principality", "start_year": 1025, "end_year": 1215 }, "year_from": null, "year_to": null, "tag": "IFR", "is_disputed": false, "is_uncertain": false, "name": "Tension_siege_engine", "tension_siege_engine": "present", "comment": null, "description": " \"The use of the catapult after the Arab conquest of Sindh became very popular.\"§REF§(1975, 23) 1975. Journal of the Research Society of Pakistan, Volume 12. Research Society of Pakistan.§REF§" }, { "id": 3, "polity": { "id": 350, "name": "af_greco_bactrian_k", "long_name": "Greco-Bactrian Kingdom", "start_year": -256, "end_year": -125 }, "year_from": null, "year_to": null, "tag": "TRS", "is_disputed": false, "is_uncertain": false, "name": "Tension_siege_engine", "tension_siege_engine": "present", "comment": null, "description": " present in Alexander's army and successor states. §REF§Sekunda, Nick. The army of Alexander the Great. Edited by Angus McBride. No. 148. Osprey Publishing, 1984.§REF§" }, { "id": 4, "polity": { "id": 129, "name": "af_hephthalite_emp", "long_name": "Hephthalite Empire", "start_year": 408, "end_year": 561 }, "year_from": null, "year_to": null, "tag": "IFR", "is_disputed": false, "is_uncertain": false, "name": "Tension_siege_engine", "tension_siege_engine": "present", "comment": null, "description": " Present in previous and subsequent polities." }, { "id": 5, "polity": { "id": 281, "name": "af_kidarite_k", "long_name": "Kidarite Kingdom", "start_year": 388, "end_year": 477 }, "year_from": null, "year_to": null, "tag": "IFR", "is_disputed": false, "is_uncertain": false, "name": "Tension_siege_engine", "tension_siege_engine": "present", "comment": null, "description": null }, { "id": 6, "polity": { "id": 127, "name": "af_kushan_emp", "long_name": "Kushan Empire", "start_year": 35, "end_year": 319 }, "year_from": null, "year_to": null, "tag": "SSP", "is_disputed": false, "is_uncertain": false, "name": "Tension_siege_engine", "tension_siege_engine": "unknown", "comment": null, "description": null }, { "id": 7, "polity": { "id": 467, "name": "af_tocharian", "long_name": "Tocharians", "start_year": -129, "end_year": 29 }, "year_from": null, "year_to": null, "tag": "SSP", "is_disputed": false, "is_uncertain": false, "name": "Tension_siege_engine", "tension_siege_engine": "unknown", "comment": null, "description": null }, { "id": 8, "polity": { "id": 253, "name": "cn_eastern_han_dyn", "long_name": "Eastern Han Empire", "start_year": 25, "end_year": 220 }, "year_from": null, "year_to": null, "tag": "TRS", "is_disputed": false, "is_uncertain": false, "name": "Tension_siege_engine", "tension_siege_engine": "present", "comment": null, "description": " \"early versions of siege crossbows and traction trebuchets may be noted in the accounts of the wars of the Qin and Han dynasties, and appear in the early military writings associated with the name of Mo Zi.\"§REF§(Turnball 2002) Turnball, S. 2002. Siege Weapons of the Far East (1): AD 612-1300. Osprey Publishing.§REF§ \"There were various grades of crossbow of different draw-weight. The heaviest required a pull of over 350lbs to cock them, and were suitable only for static positions, where they could be fixed on revolving mounts. Strong men capable of loading the larger weapons were known as chuch chang, and were highly valued specialists.\"§REF§(Peers 1995, 16)§REF§" }, { "id": 9, "polity": { "id": 254, "name": "cn_western_jin_dyn", "long_name": "Western Jin", "start_year": 265, "end_year": 317 }, "year_from": null, "year_to": null, "tag": "IFR", "is_disputed": false, "is_uncertain": false, "name": "Tension_siege_engine", "tension_siege_engine": "present", "comment": null, "description": " \"Siege equipment mentioned by Ssu-ma Kuang includes artillery, moveable towers, and artificial mounds erected to enable besiegers to shoot over city walls, and scaling ladders.\"§REF§(Peers 1995, 20)§REF§" }, { "id": 10, "polity": { "id": 422, "name": "cn_erligang", "long_name": "Erligang", "start_year": -1650, "end_year": -1250 }, "year_from": null, "year_to": null, "tag": "TRS", "is_disputed": false, "is_uncertain": false, "name": "Tension_siege_engine", "tension_siege_engine": "absent", "comment": null, "description": " Siege weaponry not present until Warring States period §REF§(Liang 2005)§REF§" }, { "id": 11, "polity": { "id": 421, "name": "cn_erlitou", "long_name": "Erlitou", "start_year": -1850, "end_year": -1600 }, "year_from": null, "year_to": null, "tag": "TRS", "is_disputed": false, "is_uncertain": false, "name": "Tension_siege_engine", "tension_siege_engine": "absent", "comment": null, "description": " Siege weaponry not present until Warring States period §REF§(Liang 2005)§REF§" }, { "id": 12, "polity": { "id": 471, "name": "cn_hmong_2", "long_name": "Hmong - Early Chinese", "start_year": 1895, "end_year": 1941 }, "year_from": null, "year_to": null, "tag": "SSP", "is_disputed": false, "is_uncertain": false, "name": "Tension_siege_engine", "tension_siege_engine": "unknown", "comment": null, "description": " we need expert input in order to code this variable" }, { "id": 13, "polity": { "id": 470, "name": "cn_hmong_1", "long_name": "Hmong - Late Qing", "start_year": 1701, "end_year": 1895 }, "year_from": null, "year_to": null, "tag": "SSP", "is_disputed": false, "is_uncertain": false, "name": "Tension_siege_engine", "tension_siege_engine": "unknown", "comment": null, "description": " we need expert input in order to code this variable" }, { "id": 14, "polity": { "id": 245, "name": "cn_jin_spring_and_autumn", "long_name": "Jin", "start_year": -780, "end_year": -404 }, "year_from": null, "year_to": null, "tag": "IFR", "is_disputed": false, "is_uncertain": false, "name": "Tension_siege_engine", "tension_siege_engine": "present", "comment": null, "description": " \"Han era scholars identify what seems to be an early Spring and Autumn period catapult called Hui used by the King of Zhou against the Duke of Zheng in 707 B.C.\"§REF§<a class=\"external free\" href=\"http://www.grandhistorian.com/chinesesiegewarfare/index-english12122007.html\" rel=\"nofollow\">http://www.grandhistorian.com/chinesesiegewarfare/index-english12122007.html</a>§REF§ siege-warfare in this period seems to have not involved specialized equipment / technology, more brute force and trickery by besieging armies §REF§(Tin-bor Hui 2005)§REF§" }, { "id": 15, "polity": { "id": 420, "name": "cn_longshan", "long_name": "Longshan", "start_year": -3000, "end_year": -1900 }, "year_from": null, "year_to": null, "tag": "TRS", "is_disputed": false, "is_uncertain": false, "name": "Tension_siege_engine", "tension_siege_engine": "absent", "comment": null, "description": " Catapults first used in Warring States Period §REF§(Liang 2005)§REF§" }, { "id": 16, "polity": { "id": 266, "name": "cn_later_great_jin", "long_name": "Jin Dynasty", "start_year": 1115, "end_year": 1234 }, "year_from": null, "year_to": null, "tag": "TRS", "is_disputed": false, "is_uncertain": false, "name": "Tension_siege_engine", "tension_siege_engine": "present", "comment": null, "description": " \"Trebuchets played an important role in the fighting between the Southern Song and the Jin.\"§REF§(Turnball 2002) Turnball, S. 2002. Siege Weapons of the Far East (1): AD 612-1300. Osprey Publishing.§REF§" }, { "id": 17, "polity": { "id": 269, "name": "cn_ming_dyn", "long_name": "Great Ming", "start_year": 1368, "end_year": 1644 }, "year_from": null, "year_to": null, "tag": "TRS", "is_disputed": false, "is_uncertain": false, "name": "Tension_siege_engine", "tension_siege_engine": "present", "comment": null, "description": " \"‘the old type of trebuchet was really more convenient’, said the founder of the Ming dynasty in 1388. ‘If you have a hundred of these machines, then when you are ready to march, each wooden pole can be carried by only four men. Then when you reach your destination, you encircle the city, set them up, and start shooting.’\"§REF§(Turnball 2002) Turnball, S. 2002. Siege Weapons of the Far East (1): AD 612-1300. Osprey Publishing.§REF§" }, { "id": 18, "polity": { "id": 425, "name": "cn_northern_song_dyn", "long_name": "Northern Song", "start_year": 960, "end_year": 1127 }, "year_from": null, "year_to": null, "tag": "TRS", "is_disputed": false, "is_uncertain": false, "name": "Tension_siege_engine", "tension_siege_engine": "present", "comment": null, "description": " Traction trebuchets. \"A Tang dynasty description from 759 is very similar to that from Mo Zi, but includes references to ‘whirlwind trebuchets’ and ‘four-footed trebuchets’, two variations that are illustrated in the Wu Jing Zong Yao of 1044. The frame of the whirlwind trebuchet was a single vertical pole that could be rotated horizontally through 360 degrees, thus allowing a wide arc of fire for comparatively lightweight missiles. Another picture in the same source shows a whirlwind trebuchet mounted on a four-wheeled carriage, which would make it even more flexible.\"§REF§(Turnball 2002) Turnball, S. 2002. Siege Weapons of the Far East (1): AD 612-1300. Osprey Publishing.§REF§ \"In 979 the Emperor T'ai-tsung ordered 800 to be built, and in 1126 at least 500 machines were present at the defence of K'aifeng alone.\"§REF§(Peers 2002, 35)§REF§ catapults §REF§(Lorge 2005, 48)§REF§" }, { "id": 19, "polity": { "id": 258, "name": "cn_northern_wei_dyn", "long_name": "Northern Wei", "start_year": 386, "end_year": 534 }, "year_from": null, "year_to": null, "tag": "IFR", "is_disputed": false, "is_uncertain": false, "name": "Tension_siege_engine", "tension_siege_engine": "present", "comment": null, "description": " Inferred from use in previous polities." }, { "id": 20, "polity": { "id": 543, "name": "cn_peiligang", "long_name": "Peiligang", "start_year": -7000, "end_year": -5001 }, "year_from": null, "year_to": null, "tag": "TRS", "is_disputed": false, "is_uncertain": false, "name": "Tension_siege_engine", "tension_siege_engine": "absent", "comment": null, "description": " Technology first seen in Warring States period §REF§(Liang 2005)§REF§" }, { "id": 21, "polity": { "id": 1, "name": "cn_qing_dyn_1", "long_name": "Early Qing", "start_year": 1644, "end_year": 1796 }, "year_from": null, "year_to": null, "tag": "IFR", "is_disputed": false, "is_uncertain": false, "name": "Tension_siege_engine", "tension_siege_engine": "absent", "comment": null, "description": " Catapults were \"gradually replaced by the larger and more powerful cannons of the gunpowder age, completely disappearing by the middle of the Ming dynasty in about the 15th or 16th century A.D.\" §REF§(Liang 2005)§REF§" }, { "id": 22, "polity": { "id": 2, "name": "cn_qing_dyn_2", "long_name": "Late Qing", "start_year": 1796, "end_year": 1912 }, "year_from": null, "year_to": null, "tag": "IFR", "is_disputed": false, "is_uncertain": false, "name": "Tension_siege_engine", "tension_siege_engine": "absent", "comment": null, "description": " Catapults were \"gradually replaced by the larger and more powerful cannons of the gunpowder age, completely disappearing by the middle of the Ming dynasty in about the 15th or 16th century A.D.\" §REF§(Liang 2005)§REF§" }, { "id": 23, "polity": { "id": 243, "name": "cn_late_shang_dyn", "long_name": "Late Shang", "start_year": -1250, "end_year": -1045 }, "year_from": null, "year_to": null, "tag": "TRS", "is_disputed": false, "is_uncertain": false, "name": "Tension_siege_engine", "tension_siege_engine": "absent", "comment": null, "description": " Siege weaponry not present until Warring States period §REF§(Liang 2005)§REF§" }, { "id": 24, "polity": { "id": 260, "name": "cn_sui_dyn", "long_name": "Sui Dynasty", "start_year": 581, "end_year": 618 }, "year_from": null, "year_to": null, "tag": "TRS", "is_disputed": false, "is_uncertain": false, "name": "Tension_siege_engine", "tension_siege_engine": "present", "comment": null, "description": " \"As in earlier periods, sophisticated siege equipment was available, including artillery, towers and rams.\"§REF§(Peers 2002, 17)§REF§" }, { "id": 25, "polity": { "id": 261, "name": "cn_tang_dyn_1", "long_name": "Tang Dynasty I", "start_year": 617, "end_year": 763 }, "year_from": null, "year_to": null, "tag": "TRS", "is_disputed": false, "is_uncertain": false, "name": "Tension_siege_engine", "tension_siege_engine": "present", "comment": null, "description": " \"As in earlier periods, sophisticated siege equipment was available, including artillery, towers and rams.\"§REF§(Peers 2002, 17)§REF§ Traction trebuchets. \"A Tang dynasty description from 759 is very similar to that from Mo Zi, but includes references to ‘whirlwind trebuchets’ and ‘four-footed trebuchets’, two variations that are illustrated in the Wu Jing Zong Yao of 1044. The frame of the whirlwind trebuchet was a single vertical pole that could be rotated horizontally through 360 degrees, thus allowing a wide arc of fire for comparatively lightweight missiles. Another picture in the same source shows a whirlwind trebuchet mounted on a four-wheeled carriage, which would make it even more flexible.\"§REF§(Turnball 2002) Turnball, S. 2002. Siege Weapons of the Far East (1): AD 612-1300. Osprey Publishing.§REF§" }, { "id": 26, "polity": { "id": 264, "name": "cn_tang_dyn_2", "long_name": "Tang Dynasty II", "start_year": 763, "end_year": 907 }, "year_from": null, "year_to": null, "tag": "TRS", "is_disputed": false, "is_uncertain": false, "name": "Tension_siege_engine", "tension_siege_engine": "present", "comment": null, "description": " \"As in earlier periods, sophisticated siege equipment was available, including artillery, towers and rams.\"§REF§(Peers 2002, 17)§REF§ Traction trebuchets. \"A Tang dynasty description from 759 is very similar to that from Mo Zi, but includes references to ‘whirlwind trebuchets’ and ‘four-footed trebuchets’, two variations that are illustrated in the Wu Jing Zong Yao of 1044. The frame of the whirlwind trebuchet was a single vertical pole that could be rotated horizontally through 360 degrees, thus allowing a wide arc of fire for comparatively lightweight missiles. Another picture in the same source shows a whirlwind trebuchet mounted on a four-wheeled carriage, which would make it even more flexible.\"§REF§(Turnball 2002) Turnball, S. 2002. Siege Weapons of the Far East (1): AD 612-1300. Osprey Publishing.§REF§" }, { "id": 27, "polity": { "id": 424, "name": "cn_wei_dyn_warring_states", "long_name": "Early Wei Dynasty", "start_year": -445, "end_year": -225 }, "year_from": null, "year_to": null, "tag": "TRS", "is_disputed": false, "is_uncertain": false, "name": "Tension_siege_engine", "tension_siege_engine": "present", "comment": null, "description": " siege-warfare in this period seems to have not involved specialized equipment / technology, more brute force and trickery by besieging armies (cf. Tin-bor Hui 2005). However, \"The Chinese traction trebuchet is at least as old as the siege crossbow and is also described in the Mo Zi writings.\" §REF§(Turnball 2002) Turnball, S. 2002. Siege Weapons of the Far East (1): AD 612-1300. Osprey Publishing.§REF§" }, { "id": 28, "polity": { "id": 251, "name": "cn_western_han_dyn", "long_name": "Western Han Empire", "start_year": -202, "end_year": 9 }, "year_from": null, "year_to": null, "tag": "TRS", "is_disputed": false, "is_uncertain": false, "name": "Tension_siege_engine", "tension_siege_engine": "present", "comment": null, "description": " \"early versions of siege crossbows and traction trebuchets may be noted in the accounts of the wars of the Qin and Han dynasties, and appear in the early military writings associated with the name of Mo Zi.\"§REF§(Turnball 2002) Turnball, S. 2002. Siege Weapons of the Far East (1): AD 612-1300. Osprey Publishing.§REF§ \"There were various grades of crossbow of different draw-weight. The heaviest required a pull of over 350lbs to cock them, and were suitable only for static positions, where they could be fixed on revolving mounts. Strong men capable of loading the larger weapons were known as chuch chang, and were highly valued specialists.\"§REF§(Peers 1995, 16)§REF§" }, { "id": 29, "polity": { "id": 244, "name": "cn_western_zhou_dyn", "long_name": "Western Zhou", "start_year": -1122, "end_year": -771 }, "year_from": null, "year_to": null, "tag": "SSP", "is_disputed": false, "is_uncertain": false, "name": "Tension_siege_engine", "tension_siege_engine": "unknown", "comment": null, "description": " According to Han dynasty era scholars Jia Kui and Xu Shen \"something called a \"hui\" which was moved or activated by the King of Zhou against the Duke of Zheng in 707 B.C. They identified this as a catapult but because the word \"hui\" now no longer exists, we cannot be sure of their interpretation.\" §REF§(Liang 2005)§REF§" }, { "id": 30, "polity": { "id": 419, "name": "cn_yangshao", "long_name": "Yangshao", "start_year": -5000, "end_year": -3000 }, "year_from": null, "year_to": null, "tag": "TRS", "is_disputed": false, "is_uncertain": false, "name": "Tension_siege_engine", "tension_siege_engine": "absent", "comment": null, "description": " Technology first seen in Warring States period §REF§(Liang 2005)§REF§" }, { "id": 31, "polity": { "id": 268, "name": "cn_yuan_dyn", "long_name": "Great Yuan", "start_year": 1271, "end_year": 1368 }, "year_from": null, "year_to": null, "tag": "TRS", "is_disputed": false, "is_uncertain": false, "name": "Tension_siege_engine", "tension_siege_engine": "present", "comment": null, "description": null }, { "id": 32, "polity": { "id": 435, "name": "co_neguanje", "long_name": "Neguanje", "start_year": 250, "end_year": 1050 }, "year_from": null, "year_to": null, "tag": "TRS", "is_disputed": false, "is_uncertain": false, "name": "Tension_siege_engine", "tension_siege_engine": "absent", "comment": null, "description": " No discussion in literature of this. In this case it is evidence of absence since this is in line with logical expectations for this late-complexity society." }, { "id": 33, "polity": { "id": 436, "name": "co_tairona", "long_name": "Tairona", "start_year": 1050, "end_year": 1524 }, "year_from": null, "year_to": null, "tag": "TRS", "is_disputed": false, "is_uncertain": false, "name": "Tension_siege_engine", "tension_siege_engine": "absent", "comment": null, "description": " No discussion in literature of this. In this case it is evidence of absence since this is in line with logical expectations for this late-complexity society." }, { "id": 34, "polity": { "id": 196, "name": "ec_shuar_1", "long_name": "Shuar - Colonial", "start_year": 1534, "end_year": 1830 }, "year_from": null, "year_to": null, "tag": "TRS", "is_disputed": false, "is_uncertain": false, "name": "Tension_siege_engine", "tension_siege_engine": "absent", "comment": null, "description": " The Shuar constructed traps for defensive purposes: 'At intervals along the trails leading to the house strong saplings are bent back, attached with strings leading across the trail with trap releases. Spears are attached to these saplings so that when the string is stepped against, the sapling will react as a catapult, launching the spear into the body of the person releasing the trap. Deadfalls with pointed chonta sticks on the bottoms are dug at various strategic points. Frequently a trench with the bottom covered with chonta points in this fashion is dug entirely around the house. Great pains are taken to cover this naturally, so as to make its location difficult to detect. Loaded guns with strings attached to the triggers are also set up here and there along the trails in the manner of the spear-catapults.\"§REF§Stirling, Matthew Williams. 1938. “Historical And Ethnographical Material On The Jivaro Indians.”, 59§REF§ These provisional traps do not constitute tension siege engines in the conventional sense of the term." }, { "id": 35, "polity": { "id": 197, "name": "ec_shuar_2", "long_name": "Shuar - Ecuadorian", "start_year": 1831, "end_year": 1931 }, "year_from": null, "year_to": null, "tag": "TRS", "is_disputed": false, "is_uncertain": false, "name": "Tension_siege_engine", "tension_siege_engine": "absent", "comment": null, "description": " [NB: Traps involving spears under tension were used for defensive purposes but it is presumed that this does not qualify as a siege engine? See: \"At intervals along the trails leading to the house strong saplings are bent back, attached with strings leading across the trail with trap releases. Spears are attached to these saplings so that when the string is stepped against, the sapling will react as a catapult, launching the spear into the body of the person releasing the trap. Deadfalls with pointed chonta sticks on the bottoms are dug at various strategic points. Frequently a trench with the bottom covered with chonta points in this fashion is dug entirely around the house. Great pains are taken to cover this naturally, so as to make its location difficult to detect. Loaded guns with strings attached to the triggers are also set up here and there along the trails in the manner of the spear-catapults.\"§REF§Stirling, Matthew Williams. 1938. “Historical And Ethnographical Material On The Jivaro Indians.”, 59§REF§]" }, { "id": 36, "polity": { "id": 367, "name": "eg_ayyubid_sultanate", "long_name": "Ayyubid Sultanate", "start_year": 1171, "end_year": 1250 }, "year_from": null, "year_to": null, "tag": "TRS", "is_disputed": false, "is_uncertain": false, "name": "Tension_siege_engine", "tension_siege_engine": "present", "comment": null, "description": " Mangonels §REF§(O'Kane 2009, 21)§REF§" }, { "id": 37, "polity": { "id": 510, "name": "eg_badarian", "long_name": "Badarian", "start_year": -4400, "end_year": -3800 }, "year_from": null, "year_to": null, "tag": "TRS", "is_disputed": false, "is_uncertain": false, "name": "Tension_siege_engine", "tension_siege_engine": "absent", "comment": null, "description": " not yet invented" }, { "id": 38, "polity": { "id": 514, "name": "eg_dynasty_1", "long_name": "Egypt - Dynasty I", "start_year": -3100, "end_year": -2900 }, "year_from": null, "year_to": null, "tag": "TRS", "is_disputed": false, "is_uncertain": false, "name": "Tension_siege_engine", "tension_siege_engine": "absent", "comment": null, "description": " not yet developed" }, { "id": 39, "polity": { "id": 515, "name": "eg_dynasty_2", "long_name": "Egypt - Dynasty II", "start_year": -2900, "end_year": -2687 }, "year_from": null, "year_to": null, "tag": "TRS", "is_disputed": false, "is_uncertain": false, "name": "Tension_siege_engine", "tension_siege_engine": "absent", "comment": null, "description": " not yet developed" }, { "id": 40, "polity": { "id": 205, "name": "eg_inter_occupation", "long_name": "Egypt - Inter-Occupation Period", "start_year": -404, "end_year": -342 }, "year_from": null, "year_to": null, "tag": "TRS", "is_disputed": false, "is_uncertain": false, "name": "Tension_siege_engine", "tension_siege_engine": "absent", "comment": null, "description": null }, { "id": 41, "polity": { "id": 232, "name": "eg_mamluk_sultanate_1", "long_name": "Egypt - Mamluk Sultanate I", "start_year": 1260, "end_year": 1348 }, "year_from": null, "year_to": null, "tag": "TRS", "is_disputed": false, "is_uncertain": false, "name": "Tension_siege_engine", "tension_siege_engine": "present", "comment": null, "description": " traction trebuchets preceded counter-weight trebuchet." }, { "id": 42, "polity": { "id": 239, "name": "eg_mamluk_sultanate_3", "long_name": "Egypt - Mamluk Sultanate III", "start_year": 1412, "end_year": 1517 }, "year_from": null, "year_to": null, "tag": "SSP", "is_disputed": false, "is_uncertain": false, "name": "Tension_siege_engine", "tension_siege_engine": "unknown", "comment": null, "description": null }, { "id": 43, "polity": { "id": 236, "name": "eg_mamluk_sultanate_2", "long_name": "Egypt - Mamluk Sultanate II", "start_year": 1348, "end_year": 1412 }, "year_from": null, "year_to": null, "tag": "IFR", "is_disputed": false, "is_uncertain": false, "name": "Tension_siege_engine", "tension_siege_engine": "present", "comment": null, "description": " traction trebuchets preceded counter-weight trebuchet - were they still in use?" }, { "id": 44, "polity": { "id": 519, "name": "eg_middle_k", "long_name": "Egypt - Middle Kingdom", "start_year": -2016, "end_year": -1700 }, "year_from": null, "year_to": null, "tag": "TRS", "is_disputed": false, "is_uncertain": false, "name": "Tension_siege_engine", "tension_siege_engine": "absent", "comment": null, "description": " not present during this time period" }, { "id": 45, "polity": { "id": 511, "name": "eg_naqada_1", "long_name": "Naqada I", "start_year": -3800, "end_year": -3550 }, "year_from": null, "year_to": null, "tag": "TRS", "is_disputed": false, "is_uncertain": false, "name": "Tension_siege_engine", "tension_siege_engine": "absent", "comment": null, "description": " not yet invented" }, { "id": 46, "polity": { "id": 512, "name": "eg_naqada_2", "long_name": "Naqada II", "start_year": -3550, "end_year": -3300 }, "year_from": null, "year_to": null, "tag": "TRS", "is_disputed": false, "is_uncertain": false, "name": "Tension_siege_engine", "tension_siege_engine": "absent", "comment": null, "description": " not yet developed" }, { "id": 47, "polity": { "id": 513, "name": "eg_naqada_3", "long_name": "Egypt - Dynasty 0", "start_year": -3300, "end_year": -3100 }, "year_from": null, "year_to": null, "tag": "TRS", "is_disputed": false, "is_uncertain": false, "name": "Tension_siege_engine", "tension_siege_engine": "absent", "comment": null, "description": " not yet developed" }, { "id": 48, "polity": { "id": 199, "name": "eg_new_k_2", "long_name": "Egypt - New Kingdom Ramesside Period", "start_year": -1293, "end_year": -1070 }, "year_from": null, "year_to": null, "tag": "TRS", "is_disputed": false, "is_uncertain": false, "name": "Tension_siege_engine", "tension_siege_engine": "absent", "comment": null, "description": " not yet developed" }, { "id": 49, "polity": { "id": 198, "name": "eg_new_k_1", "long_name": "Egypt - New Kingdom Thutmosid Period", "start_year": -1550, "end_year": -1293 }, "year_from": null, "year_to": null, "tag": "TRS", "is_disputed": false, "is_uncertain": false, "name": "Tension_siege_engine", "tension_siege_engine": "absent", "comment": null, "description": " not yet developed" }, { "id": 50, "polity": { "id": 516, "name": "eg_old_k_1", "long_name": "Egypt - Classic Old Kingdom", "start_year": -2650, "end_year": -2350 }, "year_from": null, "year_to": null, "tag": "TRS", "is_disputed": false, "is_uncertain": false, "name": "Tension_siege_engine", "tension_siege_engine": "absent", "comment": null, "description": " not yet developed" } ] }