It is long and was built to carry the Emperor Yang Guang between Beijing and Hangzhou.

Statue of Yang Guifei ( 719-756 ), the favoured concubine of Emperor Tang Xuanzong of China.

The first foot-sensor-activated automatic door was made in China during the reign of Emperor Yang of Sui ( r. 604 – 618 ), who had one installed for his royal library.

* Li Linfu, Chancellor of Tang China during the reign of Emperor Xuanzong ( 712 – 756 ) in the latter years, was exhumed and executed for crimes of high treason by his rival Yang Guozhong for his implication in the An Lushan Rebellion.

* After the completion of the Grand Canal of China, Emperor Yang of Sui led a recorded long naval flotilla of ships from the north down to his southern capital at Yangzhou.

* Yang Guifei, consort of Emperor Xuanzong ( executed )

* September 8 – Emperor Yang of Sui

* Yang Yan, minister under Emperor Dezong

* Goguryeo general Yang Manchun resists the Emperor Taizong of Tang.

* Emperor Yang of Sui ( b. 569 )

* Empress Yang Yan, first wife of Emperor Wu ( d. 274 )

The mothers of both Emperor Yang of Sui ( r. 604 – 617 ) and the founding emperor of Tang were sisters, making these two emperors of different dynasties first cousins.

In 617, Li Yuan occupied Chang ' an and acted as regent over a puppet child emperor of the Sui, relegating Emperor Yang to the position of Taishang Huang, or retired emperor / father of the present emperor.

Portrait painting of Emperor Yang of Sui, commissioned in 643 by Emperor Taizong of Tang | Taizong, painted by Yan Liben ( 600 – 673 )

Emperor Wen abolished the anti-Han policies of Zhou and reclaimed his Han surname of Yang.

Emperor Yang of Sui gained the throne after his father's death, possibly by murder.

The Sui Dynasty's second emperor, Emperor Yang conscripted many soldiers for the campaign.

Emperor Yang was assassinated in 618.

* Empress Yang Yan, first wife of Emperor Wu ( b. 238 )

" Some distorted accounts claim that in the age of Emperor Yingzong, Song Dynasty ( 960-1279 ) of China, a poem named Ode to the ice cheese ( 詠冰酪 ) was written by the poet Yang Wanli.

Emperor Yang of Sui, son of Emperor Wen of Sui, who completed the project, painting by Tang artist Yan Liben ( 600 – 673 )

Between 604 to 609, Emperor Yang Guang ( or Sui Yangdi ) of the Sui dynasty ordered a number of canals be dug in a ‘ Y ’ shape, from Hangzhou in the south to termini in ( modern ) Beijing and in the capital region along the Yellow River valley.

Emperor Yingzong of Song ordered Sima Guang and other scholars to begin compiling this universal history of China in 1065 and they presented it to his successor Emperor Shenzong of Song in 1084.

The political reformers at court, called the New Policies Group ( 新法, Xin Fa ), were led by Emperor Shenzong of Song and the Chancellors Fan Zhongyan and Wang Anshi, while the political conservatives were led by Chancellor Sima Guang and Empress Dowager Gao, regent of the young Emperor Zhezong of Song.

* 1093: when the Chinese Empress Dowager Gao dies, the conservative faction that had followed Sima Guang is ousted from court, the liberal reforms of Wang Anshi reinstated, and Emperor Zhezong of Song halted all negotiations with the Tanguts of the Western Xia, resuming in armed conflict with them.

The Reformists opposed the Modernist faction that had dominated court politics in Emperor Wu's reign and during the subsequent regency of Huo Guang ( d. 68 BCE ).

One of the most notable triumvirates formed in the history of China was by the Han Dynasty ( 202 BC – 220 AD ) statesmen Huo Guang ( d. 68 BC ), Jin Midi ( d. 86 BC ), and Shangguan Jie 上官桀 ( d. 80 BC ), following the death of Emperor Wu of Han ( r. 141 – 87 BC ) and the installation of the child emperor Zhao.

There were also other types of triumvirates during the Eastern Han ; for example, at the onset of the reign of Emperor Ling of Han ( r. 168 – 189 ), the General-in-Chief Dou Wu ( d. 168 ), the Grand Tutor Chen Fan ( d. 168 ), and another prominent statesman Hu Guang ( 91 – 172 ) formed a triumvirate nominally in charge of the Privy Secretariat, when in fact it was a regent triumvirate overseeing the affairs of state and Emperor Ling.

( Most historians, including Sima Guang, believed that she poisoned him, but another version indicated that Empress Dowager Feng readied assassins who, when Emperor Xianwen came to her palace to greet her, seized and smothered him.

He was the oldest son of Emperor Yang ( Yang Guang ) who predeceased his father.

Yang Zhao was born in 584, while his father Yang Guang was the Prince of Jin under his grandfather Emperor Wen.

In 604, Emperor Wen died -- a death that most traditional historians believed to be a murder ordered by Yang Guang, but admitted a lack of direct evidence -- and Yang Guang took the throne as Emperor Yang.

His son, Emperor Yang Guang, annihilated the Southern Chen ( 557-589 ), the last kingdom of the Southern Dynasties, thereby unifying northern and southern China.

When Prince He's uncle Emperor Zhao died in 74 BC without a son, the regent Huo Guang rejected Liu Xu ( 劉胥 ), the Prince of Guangling and the only surviving son of Emperor Wu, from succession, because Emperor Wu himself did not favor Prince Xu, who was known for being compulsive in his actions.

After Emperor He's short reign of only 27 days in 74 BC, Xuan was declared emperor by Huo Guang ( the half-brother of Huo Qubing ).

After Emperor Zhao died in 74 BC at the age of 20, the regent Huo Guang initially offered the throne to Prince He of Changyi.

Book of Sui reported that when Emperor Taiwu of Northern Wei overthrew Juqu Mujian's Northern Liang on October 18, 439, Ashina's 500 families fled to the Rouran Khaganate.

* 631 – Emperor Taizong of Tang, the Emperor of China, sends envoys to the Xueyantuo bearing gold and silk in order to seek the release of enslaved Chinese prisoners captured during the transition from Sui to Tang from the northern frontier ; this embassy succeeded in freeing 80, 000 Chinese men and women who were then returned to China.

* Emperor Wen of Sui, founder and first emperor of Chinese Sui Dynasty

* Emperor Wen of Sui ( b. 541 )

* Emperor Gong of Sui

* July 21 – Emperor Wen of Sui

* June 18 – The Sui Dynasty ends and three centuries of the Tang Dynasty begin in China with the assumption of Emperor Gaozu of Tang to the throne.

* Emperor Gong of Sui

Li Yuan ( later to become Emperor Gaozu of Tang, r. 618 – 626 ) was the Duke of Tang and former governor of Taiyuan when other government officials were fighting off bandit leaders in the collapse of the Sui Empire, caused in part by a failed Korean campaign.

On June 11, 631, Emperor Taizong also sent envoys to the Xueyantuo bearing gold and silk in order to persuade the release of enslaved Chinese prisoners who were captured during the transition from Sui to Tang from the northern frontier ; this embassy succeeded in freeing 80, 000 Chinese men and women who were then returned to China.

Founded by Emperor Wen of Sui, the Sui Dynasty capital was at Chang ' an ( which was renamed Daxing ).

The Sui Dynasty began when Emperor Wen's daughter became the Empress Dowager of Northern Zhou, with her stepson as the new emperor.

Besides employing Xianbei and other Chinese ethnic groups for the fight against Chen, Emperor Wen also employed the service of aborigines from southeastern Sichuan, a people that Sui had recently conquered.