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Plate 1 A rat seen from the side, its long tail curling behind it

Year of the Rat

The Rat is the first of the twelve animals of the Chinese zodiac, the animal of the earthly branch zi. The most recent Year of the Rat ran from 25 January 2020 to 11 February 2021; the next begins on 11 February 2032.

Chinese zodiac. Also called chinese zodiac rat, rat chinese zodiac, rat years, rat zodiac, year of the rat meaning.

Meaning

The Rat (鼠 shǔ) stands for the first of the twelve earthly branches, 子 zǐ, which also names the hour from 11 at night to 1 in the morning and the eleventh month of the Chinese calendar, as the Hong Kong Observatory sets them out. The Observatory’s English tables call it the year of the Mouse. In the 1st century AD the philosopher Wang Chong gave each branch an element and an animal: zi “also corresponds to water, its animal being the rat”, in Alfred Forke’s translation of the Lunheng. The Smithsonian’s Lunar New Year page gives the reading now popular: as the first animal the rat ushers in “a period of new beginnings”, and people born in its years are called “smart, quick-witted, flexible, adaptable, and outgoing”. Ming Wilson of the Victoria and Albert Museum points out that readings of character by birth year are recent, with “no mention of such a belief in old Chinese texts”. The cycle is used across East and Southeast Asia and in the diaspora, and Vietnam’s opens with the rat too.

Origin and history

The oldest list that pairs the branches with animals is a manual for catching thieves. In 1975 archaeologists opened Tomb 11 at Shuihudi in Yunmeng, Hubei, buried in 217 BC, the thirtieth year of the First Emperor of Qin, and found a Rishu, a “day book” for choosing lucky and unlucky days. Its chapter on thieves uses the animal of the day a theft happened to tell what the thief looks like, and begins “子,鼠也”: zi is the rat. The Hubei archaeologist Fan Guodong thinks the chapter may come from the state of Chu before the Qin unification, which would put the animals in the Warring States period.

In these day books the branches count days, not years, the Wuhan University historian Yan Changgui writes, and the fixed set of twelve animals known today probably settled in the Eastern Han. The Hong Kong Observatory dates the naming of years by the animals to about AD 100. Wang Chong’s Lunheng, from the same century, gives the rat its branch and its element in the chapter on how creatures overcome one another, and asks why, if water overcomes fire, the rat does not drive away the horse.

Years of the Rat

YearElementBeginsEnds
1924Wood5 February 192423 January 1925
1936Fire24 January 193610 February 1937
1948Earth10 February 194828 January 1949
1960Metal28 January 196014 February 1961
1972Water15 February 19722 February 1973
1984Wood2 February 198419 February 1985
1996Fire19 February 19966 February 1997
2008Earth7 February 200825 January 2009
2020Metal25 January 202011 February 2021

Each year runs from one Lunar New Year to the day before the next, as the Hong Kong Observatory’s conversion tables give them; the next Year of the Rat begins on 11 February 2032. The element comes from the year’s heavenly stem, so it changes with the last digit of the year: Wood for years ending in 4 and 5, Fire for 6 and 7, Earth for 8 and 9, Metal for 0 and 1, and Water for 2 and 3 (the five elements). Someone born in January or early February before that year’s Lunar New Year belongs to the previous animal: a child born on 20 January 2020 was born in the Year of the Pig, because the Year of the Rat began five days later. Some fortune-tellers count the change from the solar term Spring Commences (lichun, about 4 February) instead; the Observatory, and China’s national calendar standard of 2017, use the Lunar New Year.

Why is the rat first?

The story most often told is the race. Encyclopaedia Britannica records the common telling: the Jade Emperor, or in another version the Buddha, called the animals to a race to decide the order of the calendar, with a river to cross on the way. The rat, small and clever, rode across on the back of the ox and jumped off at the last moment to finish first. In a variant the rat forgot to wake the cat on the morning of the race, or pushed it off the ox’s back into the river, and legend says this is why cats hate rats.

Chinese scholars gave other reasons. A Ming writer, Li Changqing, quoted by Liu Xianting in the Qing, explained that heaven opens at the hour of zi, and the rat, a gnawing creature, gnaws it open in the middle of the night. Fan Guodong reports another explanation from historians: the branches alternate between yang and yin, and were matched with animals by the number of their toes, odd for yang and even for yin. The rat was thought to have four toes on its front feet and five on its back, both yin and yang at once, so it took the hour of zi, which falls between the two, and the first place.

The rat in Chinese folk custom

The rat is a pest in the granary and also a bringer of money in Chinese lore. The Qing writer Fang Junyi recorded a “money rat” in eastern Guangdong whose squeak sounds like coins being counted, and whose appearance was taken to mean happy news for the household; Yu Yue added that the squeak of an ordinary rat heard in the morning meant money lost, and in the evening money coming in. On the twenty-fifth day of the first month grain merchants kept the Granary Festival, and the granary god they honoured was the rat, the People’s Weekly writes; an old Beijing account calls him the lord who keeps the rats of the store. Lu Xun remembered a New Year print of “the mouse’s wedding” pinned up by his bed, its guests all pointed chins and thin legs in red shirts and green trousers. Old Chinese objects decorated with rats are few: the Victoria and Albert Museum, choosing a rat for its 2011 selection of zodiac animals, showed a teapot made at Jingdezhen in 2008.

See also

Year of the Pig, Year of the Tiger, Year of the Rabbit, Year of the Dragon, Year of the Snake, Year of the Horse.

Sources

  1. Gregorian-Lunar Calendar Conversion Table of 2020 (Hong Kong Observatory), Hong Kong Observatory, Gregorian–Lunar Calendar Conversion Table of 2020, yearly text file, Hong Kong Observatory, yearly tables T1924e.txt to T2021e.txt, all checked: the date marked “1st Lunar Month” in each year of the Mouse and in the following year; title line of this file; the Lunar New Year date in this file
  2. Gregorian-Lunar Calendar Conversion Table of 2032 (Hong Kong Observatory), Hong Kong Observatory, Gregorian–Lunar Calendar Conversion Table of 2032, yearly text file, Hong Kong Observatory, title line and the date marked “1st Lunar Month” (the next Year of the Rat)
  3. Heavenly Stems and Earthly Branches (Hong Kong Observatory), Hong Kong Observatory, “Heavenly Stems and Earthly Branches”, Calendar pages, Hong Kong Observatory, opening paragraph; Table 3 (the 12 shichen); Table 4 (stems of the months)
  4. What year is it today? (Hui Tai-wai, Hong Kong Observatory), Hui Tai-wai, “What year is it today?”, Hong Kong Observatory educational resources, April 2018, Hong Kong Observatory, paragraphs 4 and 6
  5. Huainanzi, Tianwen xun 天文訓 (Chinese Wikisource), Huainanzi 淮南子, chapter 3 “天文訓” (Celestial Patterns), 2nd century BC; Chinese text on Wikisource, Wikisource (Chinese), the passage pairing stems and branches with the five elements
  6. The 12-Year Animal Cycle (Hong Kong Observatory), Hong Kong Observatory, “The 12-Year Animal Cycle”, Calendar pages, Hong Kong Observatory, paragraphs 1–2
  7. Lun-hêng, part I (Wang Chong, tr. Alfred Forke, 1907), Wang Ch’ung, Lun-hêng, Part I: Philosophical Essays of Wang Ch’ung, translated by Alfred Forke (Leipzig, Shanghai, London, 1907), Internet Archive OCR text, Internet Archive, chapter “The Nature of Things”, pp. 105–106
  8. Lunheng, chapter 14, Wu shi 物勢 (Wang Chong, Chinese Wikisource), Wang Chong 王充, Lunheng 論衡, chapter 14 “物勢” (The Nature of Things), 1st century AD; Chinese text on Wikisource, Wikisource (Chinese), Wu shi, the passage on the twelve animals
  9. Year of the Rat (Smithsonian Institution), Smithsonian Institution, “2020: Year of the Rat” spotlight (Internet Archive copy, 18 May 2025), Smithsonian Institution, introductory text
  10. The 12 zodiac animals at the V&A (Ming Wilson), Ming Wilson, “The 12 zodiac animals at the V&A”, V&A Blog (Imperial Chinese Robes from the Forbidden City), 1 February 2011, Victoria and Albert Museum, introduction; RAT
  11. Chinese zodiac (Encyclopaedia Britannica), Frannie Comstock, “Chinese zodiac”, Encyclopaedia Britannica (Internet Archive copy, 29 September 2026), Encyclopaedia Britannica, History and legend of the Chinese zodiac; Personalities, meanings, and other variations
  12. 藏在博物馆里的鼠 (People’s Weekly), “藏在博物馆里的鼠” (Rats in the museum), 人民周刊 People’s Weekly, 4 March 2020, People’s Daily (人民网), paragraphs 2–3, 7, 10, 11
  13. 十二生肖起源可推至战国 (Fan Guodong, Chinanews / Wuhan Evening News), “十二生肖起源可推至战国 鼠身兼阴阳居首位”, interview with Fan Guodong 凡国栋, Wuhan Evening News 武汉晚报, reprinted by China News Service, 15 February 2015, China News Service (chinanews.com), interview text
  14. 中国传统生肖文化探源 (Yan Changgui, People’s Tribune), Yan Changgui 晏昌贵 (School of History, Wuhan University), “中国传统生肖文化探源” (The origins of the traditional Chinese zodiac), 人民论坛 People’s Tribune, 16 October 2025, 人民论坛 People’s Tribune, “十二生肖溯源”
  15. Why Vietnam Is Celebrating the Year of the Cat, Not the Rabbit (VOA / AFP), “Why Vietnam Is Celebrating the Year of the Cat, Not the Rabbit”, Voice of America (from AFP), January 2023, Voice of America, paragraphs 3–4

The same shape elsewhere

Researched, edited and approved by Rory Hansen before publishing. Last reviewed October 8, 2026. How we research

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