Within the landscape of ancient Chinese primitive religion and bronze metallurgy, Sanxingdui Bronzes represents the foundational source code of the tradition of ultimate three dimensional breakthrough in bronze casting spatial aesthetics. Under the historical pressures of the upper Yangtze independent bronze civilization, its parallelism with the Central Plains Shang culture, primitive shamanic religious belief, monumental sacred tree spatial aesthetics, protruding eye mask supersensory imagery, golden scepter authority, and modern archaeological breakthroughs spanning from the Shang dynasty to the 21st century (c. 18th century BCE to the 20th century CE), this tradition is defined by the excavation of Sanxingdui Sacrificial Pits No. 1 and No. 2 as its discovery landmark, the bronze sacred tree, protruding eye mask, and golden scepter as its iconic artifacts, and the 2020 to 2022 new round of excavation of six additional pits as its latest development. To trace a single coherent lineage to its source: from the early Shang origins of Sanxingdui culture (c. 18th to 12th century BCE) as the origin of the upper Yangtze independent bronze civilization, to the mature Shang period Sanxingdui culture (c. 16th to 12th century BCE) as the Sanxingdui bronze city state, to the late Shang abandonment of Sanxingdui (c. 12th to 11th century BCE, the late ancient Shu turning point), to the 1929 first discovery at Guanghan Yueliangwan Yan family courtyard (the first time the Sanxingdui site entered the modern horizon), to the 1986 major discovery of Sacrificial Pits No. 1 and No. 2 (a single excavation yielding over 1,000 artifacts including the bronze sacred tree, protruding eye mask, and golden scepter), to the Pit No. 1 grand bronze standing figure and sacred tree fragments, to the Pit No. 2 Bronze Sacred Tree No. 1 (3.95 m tall, three tiers with nine branches, golden crow bird atop, dragon climbing the fusang tree), to the Pit No. 2 bronze protruding eye mask (protruding cylindrical eyes, c. 12th century BCE), to the Pit No. 2 golden scepter (90% gold content, fish bird and human motifs, c. 12th century BCE), to the Sanxingdui jade zhang blades and bi discs (distinctive Bashu jade forms), to the Sanxingdui ivory and ivory carvings (a rare elephant resource in the Bashu region), to the 2020 to 2022 new round of archaeology uncovering six new pits (Pits No. 3 through No. 8), to the 2021 completion of the Sanxingdui Museum, to modern research on the relationship between Sanxingdui and the Jinsha site (Jinsha as the cultural continuation of Sanxingdui from c. 12th century BCE onward), tracing the complete author and date lineage of Sanxingdui Bronzes as the ultimate three dimensional breakthrough in bronze casting spatial aesthetics.
The earliest textual anchor of this lineage is the early Shang origin of Sanxingdui culture. In the early Shang period (c. 18th to 12th century BCE), the emergence of Sanxingdui culture as the upper Yangtze independent bronze civilization first established Sanxingdui as the foundational origin of this tradition. The advancement to the Sanxingdui bronze city state came during the mature Shang (c. 16th to 12th century BCE), when the Sanxingdui city walls, rammed earth remains, and palace district first gave the mature Shang Sanxingdui its fundamental status as a bronze city state. The closure of this phase as the late ancient Shu turning point came in the late Shang (c. 12th to 11th century BCE), when the abandonment of Sanxingdui and the transfer of the cultural center to the Jinsha site first gave late Shang Sanxingdui its fundamental status as the late ancient Shu turning point.
The first modern discovery came in 1929, when finds at the Yan family courtyard in Yueliangwan, Guanghan, Sichuan, first brought the Sanxingdui site into the modern horizon (documented in the Journal of the West China Border Research Society and revisited in the 1986 archaeological report). The landmark major discovery came in 1986, when Sacrificial Pits No. 1 and No. 2 at Sanxingdui, Guanghan, Sichuan (excavated July to September 1986), yielded over 1,000 artifacts including the grand bronze standing figure, Bronze Sacred Tree No. 1, the protruding eye mask, the golden scepter, jade zhang blades, and ivory carvings, first giving the 1986 excavation its fundamental status as the classic major discovery.
The bronze grand standing figure from Pit No. 1 (2.6 m tall, standing with a tall crown, both hands gripping an object, dragon pattern robes, c. 12th century BCE) first established its iconic status for Pit No. 1 in 1986. The Bronze Sacred Tree No. 1 from Pit No. 2 (3.95 m tall, three tiers with nine branches, a bird standing atop, a dragon climbing the fusang tree trunk, fish decorations, c. 12th century BCE) first established its iconic status as the monumental sacred tree. The bronze protruding eye mask from Pit No. 2 (65 cm tall, cylindrical protruding eyes extending 16 cm, enormous ears, high bridged nose, thin lips with a faint smile, c. 12th century BCE) first established the protruding eye mask as a landmark artifact. The golden scepter from Pit No. 2 (1.42 m long, 90% gold content, three groups of motifs depicting human heads, birds, and fish, c. 12th century BCE) first established the golden scepter as a symbol of supreme authority.
The jade zhang blades and bi discs from Sanxingdui (over 50 jade zhang blades, over 20 jade bi discs, plus jade cong tubes and jade ge blades from Pits No. 1 and No. 2) supplemented the distinctive Bashu jade tradition in the late Shang. The ivory and ivory carvings from Sanxingdui (over 100 elephant tusks, 8 ivory carvings, and ivory beads from Pits No. 1 and No. 2) demonstrated the rare elephant resources of the Bashu region.
The 2020 to 2022 new round of excavation at Sanxingdui (six new pits, No. 3 through No. 8, yielding over 10,000 bronze, jade, gold, and stone artifacts) first gave the 21st century excavations their fundamental status as a major new development. The 2021 completion of the Sanxingdui Museum (new building covering 50,000 square meters, housing over 5,000 artifacts) supplemented the modern museum infrastructure. Modern research on the relationship between Sanxingdui and the Jinsha site (Jinsha as the cultural continuation of Sanxingdui, c. 12th to 9th century BCE, with the cultural center shifting from Sanxingdui to Jinsha from around the 12th century BCE) closed the lineage with the theme of ancient Shu civilization continuity.
The lineage of Sanxingdui Bronzes, from the early Shang Sanxingdui cultural origin as the upper Yangtze independent bronze civilization, to the mature Shang Sanxingdui bronze city state, to the late Shang abandonment and the ancient Shu turning point, to the 1929 first modern discovery at Guanghan Yueliangwan, to the 1986 major discovery of Sacrificial Pits No. 1 and No. 2, to the Pit No. 1 grand bronze standing figure (2.6 m), to the Pit No. 2 Bronze Sacred Tree No. 1 (3.95 m, three tiers, nine branches, dragon and bird), to the Pit No. 2 protruding eye mask (65 cm, eyes protruding 16 cm), to the Pit No. 2 golden scepter (1.42 m, 90% gold), to the jade zhang and bi from Pits No. 1 and No. 2, to over 100 ivory tusks and ivory carvings, to the 2020 to 2022 new excavation of six additional pits, to the 2021 Sanxingdui Museum, to modern Sanxingdui and Jinsha site research on the continuity of ancient Shu civilization, gathers the complete thread of all fifteen author and date clusters into the simplest four characters.
The internal logic of Sanxingdui Bronzes is that, using bronze, gold, and jade as material carriers, the ancient Shu people cast the full scope of their imagination regarding heaven, earth, gods, and humanity into the gaze of the protruding eye mask, the ascending form of the sacred tree, and the authority of the golden scepter. Sanxingdui was never a vassal of the Central Plains ritual system; rather, it was the upper Yangtze independent bronze civilization inscribing the deepest footnote in the pluralistic unity of Chinese civilization through its own unique symbolic system. This is precisely why Sanxingdui shatters the Central Plains centric model and reshapes the picture of the origins of Chinese civilization.