Tang Dynasty was founded by Emperor Gaozu on June 18, 618.

* 202 BC – coronation ceremony of Liu Bang as Emperor Gaozu of Han takes place, initiating four centuries of the Han Dynasty's rule over China.

* 618 – Li Yuan becomes Emperor Gaozu of Tang, initiating three centuries of Tang Dynasty rule over China.

* 195 BC – Emperor Gaozu of Han ( b. 256 )

* 566: Birth of Lǐ Yuān, founder of the Tang Dynasty and Emperor of China under the name of Gaozu ( 618-626 )

* Emperor Gaozu of Han, founder of the Han Dynasty in China, ( 256 BC – 195 BC, reigned 202 BC – 195 BC )

* Emperor Gaozu of Han China discovers an elaborate mechanical puppet theater in the treasury of the previous ruler Qin Shihuang.

* June 25 – Emperor Gaozu, first emperor of the Chinese Tang Dynasty ( b. 566 )

* September 3 – Emperor Gaozu of Tang China abdicates in favor of his son Li Shimin.

* March 17 – Emperor Gaozu of Tang

* 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.

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.

Meanwhile, in the North, aristocrat Li Yuan ( 李淵 ) held an uprising after which he ended up ascending the throne to become Emperor Gaozu of Tang.

It was founded by the rebel leader Liu Bang, known posthumously as Emperor Gaozu of Han.

Liu Bang assumed the title " emperor " ( huangdi ) at the urging of his followers and is known posthumously as Emperor Gaozu ( r. 202 – 195 BCE ).

To placate his prominent commanders from the war with Chu, Emperor Gaozu enfeoffed some of them as kings.

Emperor Gaozu was troubled about the abundant Han-manufactured iron weapons traded to the Xiongnu along the northern borders, and he established a trade embargo against the group.

Before 157 BCE some kingdoms were ruled by non-relatives, granted to them in return for their services to Emperor Gaozu.

In the beginning of the Han, Emperor Gaozu closed the government mint in favor of private minting of coins.

Liu Bang then betrayed and defeated Xiang Yu, declaring himself Emperor Gaozu of the new Han Dynasty.

** Han Xin, general who served under Emperor Gaozu of Han

** King Xin of Han, vassal ruler under Emperor Gaozu of Han

* 195 BC – Gaozu of Han ( or Gao ), first Emperor of the Chinese Han Dynasty, who has ruled from 202 BC ( b. 256 or 247 BC )

Among the most famous Emperors are Qin Shi Huang of the Qin Dynasty, Emperors Gaozu and Wu of the Han Dynasty, Emperor Taizong of the Tang Dynasty, Kublai Khan of the Yuan Dynasty, the Hongwu Emperor of the Ming Dynasty and the Kangxi Emperor of the Qing Dynasty.

* 811 – Battle of Pliska: Byzantine Emperor Nikephoros I I is killed and his heir Staurakios is seriously wounded.

However, shortly after the election, the Emperor fell seriously ill and died on December 7, 983.

Since the death of Holy Roman Emperor Henry III, the strength of the German monarchy had been seriously weakened, and his son Henry IV had to contend with great internal difficulties.

Conrad fell seriously ill at Ephesus and was sent to recuperate in Constantinople, where his host the Emperor Manuel I acted as his personal physician.

Berlioz's joke " If the Emperor of Russia wants me, then I am up for sale " was taken seriously.

However, Emperor Shunzong remained seriously ill, and he was often attended to only by the eunuch Li Zhongyan ( 李忠言 ) and his concubine Consort Niu.

Wanting to air their grievances over this and other issues, a group of Bohemian nobles met with representatives of the Emperor at the royal castle in Prague in May, 1618 ; the meeting ended with two of the representatives and their scribe being thrown out a high window and seriously injured.

Vienna soon definitely convinced itself of his treachery, a secret court found him guilty, and the Emperor looked seriously for a means of getting rid of him ( a successor in command, the later emperor Ferdinand III, was already waiting ).

On hearing the news of the destruction of the Old Summer Palace, the Xianfeng Emperor ( who was already showing signs of dementia ) fell into a depression, turned heavily to alcohol and drugs, and became seriously ill.

In 762, Emperor Suzong had become seriously ill.

Emperor Cheng therefore seriously considered making Prince Xin his heir.

Despite this, perhaps partly again due to superstitution and partly because Emperor Ling viewed his behavior as being insufficiently solemn, Prince Bian was never created crown prince, and at times Emperor Ling seriously considered creating the younger Prince Xie crown prince.

Emperor Wu considered their counsel seriously but did not implement it at this time.

Although her health was good, Ci ' an had been seriously ill twice according to Weng Tonghe, tutor of the Guangxu Emperor, once in March 1863 for 24 days, and another time in January 1870.

Even though he had a younger brother, Sima Dewen, born of Consort Chen as well ( in 385 ), who was described to be intelligent and careful, and who learned to take care of him throughout the years, for reasons unknown, Emperor Xiaowu appeared to have never seriously considered making Sima Dewen his heir, and in 387, Sima Dezong was created crown prince.

* Londo and Vir are scheming to kill Emperor Cartagia, who Londo believes has seriously endangered Centauri Prime by giving land to the Shadows.

Although the non-medicinal consumption of opium was banned by the Yongzheng Emperor in 1729, by the 1830s, China's economy and society were being seriously affected by huge imports of opium from British and other foreign traders based in the city.

The British, who had long ceased to take the authority of the Mughal Emperor seriously were astonished at how the ordinary people responded to Zafar's call for war.

When Emperor Wenzong became seriously ill early in 840, he had his trusted eunuchs Liu Hongyi ( 劉弘逸 ) and Xue Jileng ( 薛季稜 ) summon the chancellors Yang Sifu and Li Jue to the palace, intending to entrust Li Chengmei to them.

The General's surrender, which seriously compromised the French army's position in Spain, threw the Emperor into a deep rage.

Before Yang Jian could depart, however, Emperor Xuan suddenly grew seriously ill. Two of Emperor Xuan's close associates, Liu Fang ( 劉昉 ) and Zheng Yi ( 鄭譯 ), who were friends of Yang's, summoned Yang to the palace to prepare to serve as regent, overriding the desire of another closet associate, Yan Zhiyi ( 顏之儀 ), to have Emperor Xuan's uncle Yuwen Zhao ( 宇文招 ) the Prince of Zhao appointed regent.