In addition, this category of Sword with Two Edges are still divided into two kinds according to the length of the Sword-Bobble (Tuệ Kiếm - 彗 劍) fixed afterwards the pommel :
                            a) Short Sword-Bobble (Đoản-Tuệ Kiếm) ;
                            b) Long Sword-bobble (Trường-Tuệ Kiếm).

                B - Sword with Single Edge divided also into two kinds according to the shape of the Point (called Kiếm-Phong) :
                           a) Sword holding Straight Point (called in japanese « Chokuto - Trực-Đao 直刀 » (Straight Sabre) as the Ninja-To, specific to Japan) ;
                         b) Sword holding Raised Point ( Mũi Vếch - Câu Kiếm Phong 鉤 劍 鋒 - called in japanese いかり の きっさき Ikari no KIssaki). it's there the specific Sword Point to Đại-Việt « Trực-Kiếm 直 劍 » (Straight Sword).

       2. -The Sword with Curved Blade (called sometimes Gươm) also divided into two kinds according to the Curvature of the Blade :
              A - Sword with Curved Blade from the middle of the Blade into the Point (called in japanese Torii-Zori Tachi) ; it's there the Sword with Curved Blade of great majority of Sabres-Gươm in the world.
              B - Sword with Curved Blade from the middle of the Blade into the Guard (called in japanese Koshi-Zori Tachi) ; it's there the Sword with Curved Blade specific to Japan, called « Katana ».

Synopsis of the Straight Blade Sword Category's Evolution :

       The category of Sword with a Straight Blade appeared for the first time at the Eastern Zhou Dynasty 東周 Period (771~246 BC), was used as an attendant weapon and in close-combat on the war chariots. It sprang up in the antique bronze Pertuisane "Mâu" blade and bronze Dagger.

       The Eastern Zhou - Đông-CHU 東周 Dynasty Period (771~246 BC) was the stage of Swords forged in Bronze, with Two Edged Straight Blade and measure off only about 40 cm.

Two Edged Bronze Sword
Eastern- ZHOU Dynasty Period (771~246 BC)

(Photo Credit : Thomas CHEN)

       In the « Spring-Autumn Period - 春 秋 時 代 » (722-481 BC) the Sword was forged in composite Bronze, with two edged straight and large blade, measuring off about 60 cm, used essentialy more for cuting than for thrusting. It is there the period of first celebrious Swords apperance in History of the Far East, forged by Âu-Dã-Tử ( 歐 冶 子 Ouye Zu) and Can-Tương (干 將 Ganjiang) from Ngô-Việt country.

Bronze Sword (0,60 m long) with Double Edge from Đông-Sơn (Thanh-Hóa - VIỆT-NAM)
dated by B. Karlgren : 450~230 BC.

(A et A' : Hilt and both faces of the Guard ; B : Blade Section ; C : Pommel ; D :Guard in profile view.)
- Drawing of Louis Pageot, 1924. Manuel d'Archéologie d'Extrême-Orient, L. Bezacier-

       In the Warring States Period, under the Tần (Qin) Dynasty (221~206 BC) the Sword was forged under the shape of Long Sword, with a two edged straight blade, narrower than the blades from « Spring-Autumn Period », handy for cuting and for thrusting at a time. The flat of the Sword blade had a losangic section with 8 angles, then reduced to 6 angles, and a length reaching untill 1,40 m. It was a historic stage historique of this category of Long Sword used with two hands, and called « Song-Thủ Kiếm - Two Handed Sword ».

       The anecdote of Emperor Tần-Thủy Hoàng-Đế (Qin Shi Huang Di (秦 始 皇 帝) (221~206 BC) of QIN, who was obliged to having someone for showing him how to turn backwards the scabbard with a view to drawing his sword, in order to defend oneself against Knight Kinh-Kha (King Ke), was precisely linked to the great length of this sword.

      In the Period of Anterior-HÁN Dynasty, still called Western-HÁN Dynasty (206~9 BC), the forging art of Bronze-Tin-Chrome Alloy Swords from Tần (Qin 221~206 BC) Dynasty Period began to be perfected, and the Single-Edged Sword with a Ring Pommel was also invented.

       In the Period of Posterior-HÁN Dynasty, still called Eastern-HÁN Dynasty (23~220 AD), Swords began to be forged in Iron and Steel ; the blade having a losangic section with 8 angles, then reduce to 6 angles, finaly to 4 angles : two edged angles, called Nhận (刃) and two lateral angles, one on either side of the blade, called Tích (脊), called "Shinogi" in japanese.

Iron-Steel Two-Edged Long Sword
Eastern-HAN Dynasty Period (23~220 AD)

(Photo Credit : Thomas CHEN)

Steel forged « Two-Edged Long Sword » having Six Lateral Angles
Re-Enactment by Swords of Northshire according to
the Sword from Eastern-HAN Dynasty Period (23~220 AD)

(Photo Credit : Swords of Northshire)

      Under the Tùy (Suy) Dynasty Period (581~618 AD), the art of welded Steel Swords forging from China, began to reaching the top of perfection, yielding only in front of those from Merovingians Dynasty (500~751 AD) Period in the West.

       The Sword characteristic from Tùy (Suy) Dynasty is the Single Edged Straight Blade with two lateral angles (one in each side) - called Tích ((脊) in sino-vietnamese, "Shinogi" in japanese - locating near by the edge (this Blade is called in Japan by "Kihira Zukuri") ; consequently, this Sword from Tùy (Suy) Dynasty period is very heavy.

      Under the ĐƯỜNG (TANG) Dynasty Period (618~907 AD), the art of welded Steel Swords reached a level of perfection without precedent and inequaled afterwards in Far East, and enlarged his influence into al limitrophes countries from same culture, ie. Japan, Việt-Nam, Korea and Tibet.

       It took to wait untill Yoshino Period (14th century) in Japan for that comparable precious Swords could be forged again but they belonged to the Category of Curved Blade Swords, i.e. Sabres-Gươm called « Katana, easier to forge and to temper than the one of Swords with Staight Blade from TANG Dynasty.

       The characteristic of Swords in TANG Dynasty consists in a Straight Blade with Single Edge owning two lateral angles (one in each side), called Tích ((脊) - Shinogi in japanese - situated near the Blade back , i.e. : far from the edge (this Blade is called in Japan by "Shinogi Zukuri"). That's why the Blade of this Sword from TANG Dynasty period is not also heavy as the one from SUY Dynasty period and becomes easier to handle.

       Later, under the ĐƯỜNG (TANG) Dynasty, another category of Sword, those of Two Edged Straight Sword was invented with an Inferior Edge (Hạ-nhận 下 刃) and a short Superior Edge (Thượng-Nhận 上 刃) or "Contre-Tranchant", located near by the point of the Sword, on the side of the back blade.

Synopsis of the Curved Blade Sword Category's Evolution :

            The Category of Sword with Curved Blade, called Sabre-Gươm or Sabre-Đao, holding single edge, was appeared after the Category of Sword with Straight Blade.

            The Japanese Sword « Kissaki Moroha Zukuri Tachi - "Kogarasu Maru - 小烏丸 Tiểu Ô-Hoàn - Little Crow" » with a long Inferior Edge (Hạ-nhận 下 刃) and a short Superior Edge (Thượng-Nhận 上 刃) or "False-Edge" is a piece of evidence speaking for itself of the influence of the Sword with Straight Blade from TANG Dynasty (618~907 AD).

            Later, this Category of Sword with Curved Blade evolved towards the Sabre-Gươm or Sabre-Đao, holding single edge. It's provides an obvious proof of the influence of the Sword with Straight Blade from TANG Dynasty (618~907 JC). and includes two kinds, the one of Two-Handed Sabre-Gươm and the one of One-Handed Sabre-Gươm :


       1) The Two-Handed Sabre-Gươm :

            It's the Sword with a Curved Blade (called Katana), that Japaneses have raised into the highest degree of perfection in the forge of Sword, comparable to the one from TANG Dynasty Period (618~907 JC).

Two-Handed « Sabre-Gươm » of ĐẠI-VIỆT
Circa 18th~19th centuries.

Imperial Guard holding the « Two-Handed Sabre-Gươm »
NGUYỄN Dynasty (1802-1945)

( Photo credit : Nguyễn Khắc Ngữ )

« Two-Handed Sabre-Gươm » during the Religious Feast (Lễ Hội)
celebrated each year on March 10th from lunar calendrar at Scarlet Temple (Đền Đỏ)
(dedicated to Holy-Mother Đạm Đồng Lương's Cult ) in Hamlet of Sơn-Thọ,
Thái-Dương Village, District of Thái-Thụy, Nghệ-An City.

       2) The One-Handed Sabre-Gươm :

            It's the Sword with a Curved Blade the most usual in the world, and it's still called « Đao » in China and « Sabre » in Europe.

« One-Handed Sabre-Gươm » of ĐẠI-VIỆT
Đại-Việt - Circa 18th~19th centuries

(Photo Credit : Gavin Nugent, swordsantiqueweapons.com)

« One-Handed Sabre-Gươm » of ĐẠI-VIỆT
with an Inferior Edge (Hạ-nhận 下 刃) and a short Superior Edge (Thượng-Nhận 上 刃) or "Contre-Tranchant",
located near by the point of the Sword, on the side of the back blade.
Đại-Việt - Circa 18th~19th centuries

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