Zhou dynasty

As recorded in Rites of Zhou and Book of Rites, clothing became one of the principles of rites and ceremony, hence guan became a foundational item for etiquette and ritual. ^[9] During the Zhou dynasty, the main types of guan used were mianguan and bianguan (弁冠).^{[10]: 98–99} The mianguan was the highest rank of guan and could only be worn by the rulers, the feudal lords and nobles in sacrificial ceremonies, such as the Heaven worshipping ceremony and the ancestors worshipping ceremony, and in conferring ceremony.^{[10]: 98–99} The mianguan followed strict regulations based on social hierarchy with the number of beads tassels indicating the ranks of its wearer; for example, the Emperor wore twelve beads tassels while the lowest rank officials wore only two beads tassels.^[10]: 99 The bianguan was the second highest guan after the mianguan and was divided into two types: quebian and pibian.^[10]: 99 The quebian was red and black in colour.^[10]: 99 The pibian was decorated with 12 beams of white deer-skin, had an arched top, wide edges, and was decorated with many colourful jades in its seams.^[10]: 99

Warring States period

During the Warring States period, King Wuling of Zhao adopted the hufuqishe policy and a hufu-style guan, which looks similar to the conical hat of the Scythians, was adopted.^[11] King Wuling's hufu-style guan was less pointy than the actual Scythian hat and he decorated his hat with a marten tail to denote his noble status.^[11] The King of Qin later give the hufu-style guan of King Wuling to his servant as an insult to King Wuling after the latter had destroyed the regime of the Zhao state.^[11] King Huiwen of Zhao later wore the same hufu-style guan as his father, King Wuling; and therefore this type of guan was named zhaohuiwenguan (Chinese: 趙惠文冠; pinyin: zhàohuìwénguān; lit. 'Crown of King Huiwen of Zhao').^[11] Many years later, the zhaohuiwenguan evolved into the military cap called wuguan (Chinese: 武冠; pinyin: wǔguān; lit. 'military cap').^{[note 1][11]}

A wuguan decorated with pheasant feathers became known as heguan (Chinese: 鶡冠; pinyin: héguān; lit. 'long-tailed pheasant hat') by the Han dynasty;^[12] the heguan was first worn in the state of Zhao to distinguish military officers during the Warring States period.^[13]: 293 The heguan was possibly derived from the hufu-style guan adopted by King Wuling through hufuqishe policy.^[12] The snow pheasant (Chinese: 鶡; pinyin: hé) was a symbolism of martial valour and courage due to its association with the snow pheasant which would fight its opponent until death.^[13]: 293

Qin dynasty

In the Qin dynasty, the heguan continued to be worn to distinguish military officers; by that time onward, the use of heguan had spread throughout the whole empire.^[13]: 293

Han dynasty

In the Han dynasty, only people from distinguished background were allowed to wear guan.^[2]: 16 During this period, there were many forms of guan, such as tongtianguan worn by the Emperor, yuanyouguan worn by dukes and princes; jinxianguan worn by the civil officials, and wuguan (武冠) worn by the military officials.^[2]: 16 The heguan was decorated with two pheasant feathers on either sides and was worn by specialized member of the Han dynasty military.^[12]

Sui dynasty

Emperor Wendi of Sui established a new attire system by basing himself on the system of the Cao Wei, Western Jin, and Northern Qi dynasties; however the Sui dynasty system was incomplete.^[14]: 132 It was under Emperor Yangdi that more reforms took place in accordance with the ancient traditions and that the appearance of the ritual headwear were reformed.^[14]: 133

The mianguan continued to be worn by the Emperor Yangdi.^[14]: 133 He also wore bianguan (弁冠) which was distinguished by a gold mountain-symbol called boshan (博山).^[14]: 134 He also wore another kind of guan called wubian (武弁), which was lighter and simpler in terms of designs when compared to the mianguan.^[14]: 133 The wubian was traditionally worn by the military officials, and it was derived from the bianguan which was worn by the court officials.^[14]: 133 The wubian became the favourite guan of the Emperor Yangdi when he went on cuttings; such as hunting trips, military expeditions, and other related ceremonies.^[14]: 133 He also allowed his ministers and the other government officials (military and civil officials) to wear the wubian.^[14]: 134

The jinxianguan (進賢冠) was worn by the civil officials at the court.^[14]: 134 The court censors wore the quefeiguan (卻非冠) under the reign of Emperor Wendi as their official headgear, but it was later replaced by the xiezhiguan (獬豸冠) by Emperor Yangdi which would distinguish its wearer's rank through the use of various materials.^{[note 2][14]: 134}

Tang dynasty

In the Tang dynasty, the guan was replaced by the futou in the official clothing system.^[2]: 17

Song dynasty

In the Song dynasty, the Emperor wore the tongtianguan while the crown prince wore yuanyouguan (遠遊冠).^[15]: 91 The guan was worn by the literati which continued the long tradition.^[5]: 8 It was also generally worn by the junzi and those who were dedicated to adhere to the ancient courtesies and etiquette.^[5]: 8–9 Some literati would also wear the xiaoguan (Chinese: 小冠; lit. 'small crown') on summer days in order to not exposed their topknot.^[5]: 8–9 Under the reign of Emperor Huizong, all Confucian temples were ordered to upgrade their images of Confucius by adding a mianguan with 12 beaded-tassels on its depictions.^[16]: 807

Ming dynasty

In the Ming dynasty, the guan was only reserved to the Emperor and the members of the royal family; they were only suitable on formal occasions.^[2]: 18 The emperor wore yishanguan (翼善冠).^{[note 3][2]: 18}