Hoof-shaped gold wares are displayed at an exhibition in Capital Museum in Beijing, capital of China, March 2, 2016. The gold wares were unearthed from the 2,000-year-old tomb of Marquis of Haihun, who had a short-lived reign of 27 days as an emperor of Western Han Dynasty (206 BC -- 24 AD), in Nanchang, capital of east China's Jiangxi Province. A jade seal found in the interior coffin of the tomb helped identify its master as "Liu He", name of the Marquis of Haihun, who is also the grandson of Emperor Wu whose reign ushered in one of the most prosperous periods in China's history. Over 10,000 pieces of cultural relics were unearthed from the tomb during the 5-year-long excavation. Photo: Xinhua

A jade seal is displayed at an exhibition in Capital Museum in Beijing, capital of China, March 2, 2016. The jade seal was unearthed from the 2,000-year-old tomb of Marquis of Haihun, who had a short-lived reign of 27 days as an emperor of Western Han Dynasty (206 BC -- 24 AD), in Nanchang, capital of east China's Jiangxi Province. The jade seal found in the interior coffin of the tomb helped identify its master as "Liu He", name of the Marquis of Haihun, who is also the grandson of Emperor Wu whose reign ushered in one of the most prosperous periods in China's history. Over 10,000 pieces of cultural relics were unearthed from the tomb during the 5-year-long excavation. Photo: Xinhua

Delegates attend a press conference in Capital Museum in Beijing, capital of China, March 2, 2016. The press conference was held to introduce the archaeological findings of the 2,000-year-old tomb of Marquis of Haihun, who had a short-lived reign of 27 days as an emperor of Western Han Dynasty (206 BC -- 24 AD), in Nanchang, capital of east China's Jiangxi Province. A jade seal found in the interior coffin of the tomb helped identify its master as "Liu He", name of the Marquis of Haihun, who is also the grandson of Emperor Wu whose reign ushered in one of the most prosperous periods in China's history. Over 10,000 pieces of cultural relics were unearthed from the tomb during the 5-year-long excavation. Photo: Xinhua

A visitor views bronze lamps at an exhibition in Capital Museum in Beijing, capital of China, March 2, 2016. The lamps were unearthed from the 2,000-year-old tomb of Marquis of Haihun, who had a short-lived reign of 27 days as an emperor of Western Han Dynasty (206 BC -- 24 AD), in Nanchang, capital of east China's Jiangxi Province. A jade seal found in the interior coffin of the tomb helped identify its master as "Liu He", name of the Marquis of Haihun, who is also the grandson of Emperor Wu whose reign ushered in one of the most prosperous periods in China's history. Over 10,000 pieces of cultural relics were unearthed from the tomb during the 5-year-long excavation. Photo: Xinhua

Photo taken on March 1, 2016 shows a wooden slip unearthed from the 2,000-year-old Haihunhou (Marquis of Haihun) Tomb in Nanchang, capital of east China's Jiangxi Province. The wooden slip was written with report to the Marquis of Haihun, who had a short-lived reign of 27 days as an emperor of Western Han Dynasty (206 BC -- 24 AD). A jade seal found in the interior coffin of the tomb helped identify its master as "Liu He", name of the Marquis of Haihun, who is also the grandson of Emperor Wu whose reign ushered in one of the most prosperous periods in China's history. Over 10,000 pieces of cultural relics were unearthed from the tomb during the 5-year-long excavation. Photo: Xinhua

Undated file photo shows a jade seal unearthed from the 2,000-year-old tomb of Marquis of Haihun, who had a short-lived reign of 27 days as an emperor of Western Han Dynasty (206 BC -- 24 AD), in Nanchang, capital of east China's Jiangxi Province. The jade seal found in the interior coffin of the tomb helped identify its master as "Liu He", name of the Marquis of Haihun, who is also the grandson of Emperor Wu whose reign ushered in one of the most prosperous periods in China's history. Over 10,000 pieces of cultural relics were unearthed from the tomb during the 5-year-long excavation. Photo: Xinhua

Combo photo shows a hoof-shaped gold ware (up, L), gold cakes (up, R), a jade pendant (bottom, L) and a jade seal (bottom, R) unearthed from the 2,000-year-old tomb of Marquis of Haihun, who had a short-lived reign of 27 days as an emperor of Western Han Dynasty (206 BC -- 24 AD), in Nanchang, capital of east China's Jiangxi Province. A jade seal found in the interior coffin of the tomb helped identify its master as "Liu He", name of the Marquis of Haihun, who is also the grandson of Emperor Wu whose reign ushered in one of the most prosperous periods in China's history. Over 10,000 pieces of cultural relics were unearthed from the tomb during the 5-year-long excavation. Photo: Xinhua

Undated file photo shows a jade seal unearthed from the 2,000-year-old tomb of Marquis of Haihun, who had a short-lived reign of 27 days as an emperor of Western Han Dynasty (206 BC -- 24 AD), in Nanchang, capital of east China's Jiangxi Province. The jade seal found in the interior coffin of the tomb helped identify its master as "Liu He", name of the Marquis of Haihun, who is also the grandson of Emperor Wu whose reign ushered in one of the most prosperous periods in China's history. Over 10,000 pieces of cultural relics were unearthed from the tomb during the 5-year-long excavation. Photo: Xinhua

Combo photo taken on Nov. 6, 2015 shows a bronze distiller (L), a bronze pot (up, R) and bronze lamps (bottom, R) unearthed from the 2,000-year-old tomb of Marquis of Haihun, who had a short-lived reign of 27 days as an emperor of Western Han Dynasty (206 BC -- 24 AD), in Nanchang, capital of east China's Jiangxi Province. A jade seal found in the interior coffin of the tomb helped identify its master as "Liu He", name of the Marquis of Haihun, who is also the grandson of Emperor Wu whose reign ushered in one of the most prosperous periods in China's history. Over 10,000 pieces of cultural relics were unearthed from the tomb during the 5-year-long excavation. Photo: Xinhua

Combo photo taken on March 1, 2016 shows cultural relics unearthed from the 2,000-year-old tomb of Marquis of Haihun, who had a short-lived reign of 27 days as an emperor of Western Han Dynasty (206 BC -- 24 AD), in Nanchang, capital of east China's Jiangxi Province. A jade seal found in the interior coffin of the tomb helped identify its master as "Liu He", name of the Marquis of Haihun, who is also the grandson of Emperor Wu whose reign ushered in one of the most prosperous periods in China's history. Over 10,000 pieces of cultural relics were unearthed from the tomb during the 5-year-long excavation. Photo: Xinhua

Archaeologists work at the site of the 2,000-year-old tomb of Marquis of Haihun, who had a short-lived reign of 27 days as an emperor of Western Han Dynasty (206 BC -- 24 AD), in Nanchang, capital of east China's Jiangxi Province, Aug. 14, 2015. A jade seal found in the interior coffin of the tomb helped identify its master as "Liu He", name of the Marquis of Haihun, who is also the grandson of Emperor Wu whose reign ushered in one of the most prosperous periods in China's history. Over 10,000 pieces of cultural relics were unearthed from the tomb during the 5-year-long excavation. Photo: Xinhua

Photo taken on Nov. 14, 2015 shows the archaeological site of the 2,000-year-old tomb of Marquis of Haihun, who had a short-lived reign of 27 days as an emperor of Western Han Dynasty (206 BC -- 24 AD), in Nanchang, capital of east China's Jiangxi Province, Aug. 14, 2015. A jade seal found in the interior coffin of the tomb helped identify its master as "Liu He", name of the Marquis of Haihun, who is also the grandson of Emperor Wu whose reign ushered in one of the most prosperous periods in China's history. Over 10,000 pieces of cultural relics were unearthed from the tomb during the 5-year-long excavation. Photo: Xinhua

Photo taken on March 1, 2016 shows a gold cake unearthed from the 2,000-year-old Haihunhou (Marquis of Haihun) Tomb in Nanchang, capital of east China's Jiangxi Province. The gold cake was written with report to the Marquis of Haihun, who had a short-lived reign of 27 days as an emperor of Western Han Dynasty (206 BC -- 24 AD). A jade seal found in the interior coffin of the tomb helped identify its master as "Liu He", name of the Marquis of Haihun, who is also the grandson of Emperor Wu whose reign ushered in one of the most prosperous periods in China's history. Over 10,000 pieces of cultural relics were unearthed from the tomb during the 5-year-long excavation. Photo: Xinhua

Visitors view bronze wares at an exhibition in Capital Museum in Beijing, capital of China, March 2, 2016. The cultural relics were unearthed from the 2,000-year-old tomb of Marquis of Haihun, who had a short-lived reign of 27 days as an emperor of Western Han Dynasty (206 BC -- 24 AD), in Nanchang, capital of east China's Jiangxi Province. Over 10,000 pieces of cultural relics were unearthed from the tomb of Liu He, the marquis' name, during the 5-year-long excavation. Now a total of 441 cultural relics from the tomb are on display in Beijing's Capital Museum. Photo: Xinhua

Visitors view gold cakes at an exhibition in Capital Museum in Beijing, capital of China, March 2, 2016. The cultural relics were unearthed from the 2,000-year-old tomb of Marquis of Haihun, who had a short-lived reign of 27 days as an emperor of Western Han Dynasty (206 BC -- 24 AD), in Nanchang, capital of east China's Jiangxi Province. Over 10,000 pieces of cultural relics were unearthed from the tomb of Liu He, the marquis' name, during the 5-year-long excavation. Now a total of 441 cultural relics from the tomb are on display in Beijing's Capital Museum. Photo: Xinhua

Visitors view cultural relics at an exhibition in Capital Museum in Beijing, capital of China, March 2, 2016. The cultural relics were unearthed from the 2,000-year-old tomb of Marquis of Haihun, who had a short-lived reign of 27 days as an emperor of Western Han Dynasty (206 BC -- 24 AD), in Nanchang, capital of east China's Jiangxi Province. Over 10,000 pieces of cultural relics were unearthed from the tomb of Liu He, the marquis' name, during the 5-year-long excavation. Now a total of 441 cultural relics from the tomb are on display in Beijing's Capital Museum. Photo: Xinhua

Visitors view cultural relics at an exhibition in Capital Museum in Beijing, capital of China, March 2, 2016. The cultural relics were unearthed from the 2,000-year-old tomb of Marquis of Haihun, who had a short-lived reign of 27 days as an emperor of Western Han Dynasty (206 BC -- 24 AD), in Nanchang, capital of east China's Jiangxi Province. Over 10,000 pieces of cultural relics were unearthed from the tomb of Liu He, the marquis' name, during the 5-year-long excavation. Now a total of 441 cultural relics from the tomb are on display in Beijing's Capital Museum. Photo: Xinhua

Visitors view jade wares at an exhibition in Capital Museum in Beijing, capital of China, March 2, 2016. The cultural relics were unearthed from the 2,000-year-old tomb of Marquis of Haihun, who had a short-lived reign of 27 days as an emperor of Western Han Dynasty (206 BC -- 24 AD), in Nanchang, capital of east China's Jiangxi Province. Over 10,000 pieces of cultural relics were unearthed from the tomb of Liu He, the marquis' name, during the 5-year-long excavation. Now a total of 441 cultural relics from the tomb are on display in Beijing's Capital Museum. Photo: Xinhua

Visitors view cultural relics at an exhibition in Capital Museum in Beijing, capital of China, March 2, 2016. The cultural relics were unearthed from the 2,000-year-old tomb of Marquis of Haihun, who had a short-lived reign of 27 days as an emperor of Western Han Dynasty (206 BC -- 24 AD), in Nanchang, capital of east China's Jiangxi Province. Over 10,000 pieces of cultural relics were unearthed from the tomb of Liu He, the marquis' name, during the 5-year-long excavation. Now a total of 441 cultural relics from the tomb are on display in Beijing's Capital Museum. Photo: Xinhua

Combo photo taken on March 2, 2016 shows gold wares at an exhibition in Capital Museum in Beijing, capital of China. The cultural relics were unearthed from the 2,000-year-old tomb of Marquis of Haihun, who had a short-lived reign of 27 days as an emperor of Western Han Dynasty (206 BC -- 24 AD), in Nanchang, capital of east China's Jiangxi Province. Over 10,000 pieces of cultural relics were unearthed from the tomb of Liu He, the marquis' name, during the 5-year-long excavation. Now a total of 441 cultural relics from the tomb are on display in Beijing's Capital Museum. Photo: Xinhua