Chichibu, Saitama

{{about|the city in Saitama Prefecture|the brother of Emperor Hirohito|Prince Chichibu}} {{Infobox settlement  | name = Chichibu | official_name = | native_name = {{nobold|{{lang|ja|秩父市}}}} | native_name_lang = ja | settlement_type = City  | image_skyline = Central Chichibu view from Hitsujiyama Park.JPG | imagesize = | image_alt = | image_caption = View of central Chichibu, from Hitsujiyama Park | image_flag = Flag of Chichibu, Saitama.svg | flag_alt = | image_seal = Emblem of Chichibu, Saitama.svg | seal_alt = | image_shield = | shield_alt = | image_blank_emblem = | nickname = | motto =  | image_map = Chichibu in Saitama Prefecture Ja.svg | map_alt = | map_caption = Location of Chichibu in Saitama Prefecture | pushpin_map = Japan#Japan Kanto#Japan Saitama Prefecture | pushpin_label_position =  | pushpin_map_alt = | pushpin_map_caption = | coordinates = {{coord|35|59|30.4|N|139|5|7.7|E|region:JP|display=inline,title}} | coor_pinpoint =  | coordinates_footnotes =   | subdivision_type = Country | subdivision_name = Japan | subdivision_type1 = Region | subdivision_name1 = Kantō | subdivision_type2 = Prefecture | subdivision_name2 = Saitama | subdivision_type3 = | subdivision_name3 =  | established_title = First official recorded | established_date = 88 BC (official) | established_title2 = City established | established_date2 = April 1, 1950 | founder = | named_for =  | seat_type =  | seat =  | government_footnotes =  | leader_party = | leader_title = Mayor | leader_name = Kazuhiko Kiyono (since May 2025) | leader_title1 = | leader_name1 =   | total_type =  | unit_pref =   | area_magnitude =  | area_footnotes =  | area_total_km2 = 577.83 | area_land_km2 = | area_water_km2 = | area_water_percent = | area_note =  | elevation_footnotes =  | elevation_m =  | population_footnotes =  | population_total = 61159 | population_as_of = January 1, 2021 | population_density_km2 = auto | population_est = | pop_est_as_of = | population_demonym =  | population_note =  | timezone1 = Japan Standard Time | utc_offset1 = +9 | timezone1_DST = | utc_offset1_DST =  | postal_code_type = | postal_code = | area_code_type =  | area_code =  | blank_name_sec1 = Phone number | blank_info_sec1 = 0494-22-2211 | blank1_name_sec1 = Address | blank1_info_sec1 =8-15 Kumaki, Chichibu, Saitama 368-8686  | blank_name_sec2 = Climate | blank_info_sec2 = Cfa  | website = {{Official|1=http://www.city.chichibu.lg.jp/}} | footnotes = | module = {{Infobox place symbols| embedded=yes | tree = Kaede | flower = Shiba-zakura | bird = Blue-and-white flycatcher | flowering_tree = | butterfly = | fish = | other_symbols = }} }} thumb|right|Chichibu City Hall {{Nihongo|'''Chichibu'''|秩父市|Chichibu-shi|lead=yes}} is a city located in Saitama Prefecture, Japan. {{As of|2021|01|01}}, the city had an estimated population of 61,159 in 26,380 households and a population density of {{convert|110|PD/km2}}.<ref name="Chichibu-hp">{{cite web |url=http://www.city.chichibu.lg.jp/1143.html |title= Chichibu city official statistics|location= Japan|language= ja}}</ref> The total area of the city is {{convert|577.83|km2}}.

==Geography== thumb|Oku-Chichibu ("Further Chichibu") Mountains Chichibu is in the westernmost part of Saitama. Unlike other parts of the prefecture, it is largely mountainous and the population is concentrated in river terraces along the Arakawa River. It is Saitama's largest municipality in terms of surface area and shares borders with Tokyo, Yamanashi, Nagano and Gunma Prefectures. A large portion of the city belongs to Chichibu Tama Kai National Park.<ref>{{Cite web|url=http://www.env.go.jp/park/chichibu/intro/index.html|title=環境省_秩父多摩甲斐国立公園_概要・計画書}}</ref>

Because the region is not suitable for growing rice, many people have traditionally depended on sericulture (silk farming). Limestone from Mount Bukō, which rises south of the city center, is another major source of income for the region. The city is shifting its focus toward sightseeing, taking advantage of its rich natural environment and relative closeness to the Tokyo metropolitan area. The city is also famous for its brewing industry.

===Surrounding municipalities=== Gunma Prefecture * Fujioka * Kanna * Ueno Nagano Prefecture * Kawakami Saitama Prefecture * Hannō * Higashichichibu * Kamikawa * Minano * Ogano * Tokigawa * Yokoze Tokyo Metropolis * Okutama Yamanashi Prefecture * Kōshū * Tabayama * Yamanashi

===Climate=== Chichibu has a Humid subtropical climate (Köppen ''Cfa'') characterized by warm summers and cool winters with light to no snowfall. The average annual temperature in Chichibu is 13.2 °C. The average annual rainfall is 1325 mm with September as the wettest month. The temperatures are highest on average in August, at around 25.8 °C, and lowest in January, at around 6.0 °C.<ref>[https://en.climate-data.org/asia/japan/saitama/chichibu-2913/ Chichibu climate data]</ref>

{{Weather box | width = auto | metric first = yes | single line = yes | location = Chichibu (1991−2020 normals, extremes 1926−present) | Jan record high C = 23.0 | Feb record high C = 26.6 | Mar record high C = 27.6 | Apr record high C = 33.0 | May record high C = 37.2 | Jun record high C = 38.3 | Jul record high C = 39.2 | Aug record high C = 40.0 | Sep record high C = 38.0 | Oct record high C = 32.4 | Nov record high C = 26.5 | Dec record high C = 25.1 | Jan high C = 8.9 | Feb high C = 10.0 | Mar high C = 13.5 | Apr high C = 19.1 | May high C = 23.8 | Jun high C = 26.0 | Jul high C = 29.8 | Aug high C = 31.0 | Sep high C = 26.4 | Oct high C = 20.8 | Nov high C = 15.9 | Dec high C = 11.2 | Jan mean C = 1.8 | Feb mean C = 3.0 | Mar mean C = 6.6 | Apr mean C = 12.2 | May mean C = 17.3 | Jun mean C = 20.8 | Jul mean C = 24.6 | Aug mean C = 25.5 | Sep mean C = 21.5 | Oct mean C = 15.5 | Nov mean C = 9.2 | Dec mean C = 4.0 | Jan low C = -3.8 | Feb low C = -2.9 | Mar low C = 0.7 | Apr low C = 5.9 | May low C = 11.5 | Jun low C = 16.5 | Jul low C = 20.6 | Aug low C = 21.5 | Sep low C = 17.7 | Oct low C = 11.3 | Nov low C = 4.0 | Dec low C = -1.6 | Jan record low C = -15.8 | Feb record low C = -14.4 | Mar record low C = -12.5 | Apr record low C = -5.4 | May record low C = -0.9 | Jun record low C = 4.4 | Jul record low C = 9.1 | Aug record low C = 10.8 | Sep record low C = 6.1 | Oct record low C = -0.9 | Nov record low C = -6.5 | Dec record low C = -11.7 | precipitation colour = green | Jan precipitation mm = 40.3 | Feb precipitation mm = 30.8 | Mar precipitation mm = 69.0 | Apr precipitation mm = 88.0 | May precipitation mm = 102.4 | Jun precipitation mm = 145.4 | Jul precipitation mm = 192.0 | Aug precipitation mm = 188.4 | Sep precipitation mm = 236.7 | Oct precipitation mm = 204.1 | Nov precipitation mm = 47.5 | Dec precipitation mm = 30.7 | year precipitation mm = 1375.3 | unit precipitation days = 1.0 mm | Jan precipitation days = 3.3 | Feb precipitation days = 3.8 | Mar precipitation days = 7.6 | Apr precipitation days = 7.6 | May precipitation days = 9.1 | Jun precipitation days = 12.0 | Jul precipitation days = 13.2 | Aug precipitation days = 10.6 | Sep precipitation days = 11.5 | Oct precipitation days = 8.9 | Nov precipitation days = 5.2 | Dec precipitation days = 3.5 | Jan snow cm = 15 | Feb snow cm = 12 | Mar snow cm = 6 | Apr snow cm = 1 | May snow cm = 0 | Jun snow cm = 0 | Jul snow cm = 0 | Aug snow cm = 0 | Sep snow cm = 0 | Oct snow cm = 0 | Nov snow cm = 0 | Dec snow cm = 2 | year snow cm = 36 | unit snow days = 3 cm | Jan snow days = 2.0 | Feb snow days = 1.6 | Mar snow days = 1.3 | Apr snow days = 0.2 | May snow days = 0 | Jun snow days = 0 | Jul snow days = 0 | Aug snow days = 0 | Sep snow days = 0 | Oct snow days = 0 | Nov snow days = 0 | Dec snow days = 0.3 | humidity colour = green | Jan humidity = 64 | Feb humidity = 62 | Mar humidity = 64 | Apr humidity = 67 | May humidity = 71 | Jun humidity = 79 | Jul humidity = 81 | Aug humidity = 80 | Sep humidity = 83 | Oct humidity = 82 | Nov humidity = 79 | Dec humidity = 71 | Jan sun = 205.5 | Feb sun = 193.1 | Mar sun = 189.7 | Apr sun = 186.3 | May sun = 179.5 | Jun sun = 123.0 | Jul sun = 133.4 | Aug sun = 152.4 | Sep sun = 113.6 | Oct sun = 128.7 | Nov sun = 163.7 | Dec sun = 192.3 | year sun = 1968.1 | source 1 = JMA<ref>{{cite web | url = https://www.data.jma.go.jp/obd/stats/etrn/view/rank_s.php?prec_no=43&block_no=47641&year=&month=&day=&view=h0 |script-title=ja:観測史上1～10位の値（年間を通じての値） | publisher = JMA | access-date = February 26, 2022}}</ref><ref>{{cite web | url = https://www.data.jma.go.jp/obd/stats/etrn/view/nml_sfc_ym.php?prec_no=43&block_no=47641&year=&month=&day=&view=h0 |script-title=ja:気象庁 / 平年値（年・月ごとの値） | publisher = JMA | access-date = February 26, 2022}}</ref> | source = }}

==Demographics== Per Japanese census data,<ref>[https://www.citypopulation.de/php/japan-saitama.php Chichibu population statistics]</ref> the population of Chichibu has decreased gradually over the past 60 years.

{{Historical populations | 1950 | 78,285 | 1960 | 82,811 | 1970 | 78,764 | 1980 | 76,875 | 1990 | 75,845 | 2000 | 73,875 | 2010 | 66,955 | 2020 | 59,674 |align = none | footnote = }}

==History== Chichibu was incorporated as a city on April 1, 1950, although Chichibu Province had already existed since before the Nara period and the region has developed many local traditions. Chichibu Province was incorporated into Musashi Province in the 7th century AD. During premodern times, the town developed as a marketplace of the district as well as the town around Chichibu Shrine. The city's older name, Ōmiya ("big shrine"), was derived from the shrine. Since its incorporation in 1950, the area of the city has grown through a series of mergers, the most recent in 2005.

=== Timeline === *708: Deposits of copper are discovered in the region and offered to the Imperial Court. The era name Wadō (和銅, meaning "Japanese copper") is proclaimed in recognition of this welcome event in the initial months of Empress Genmei's reign.<ref>Titsingh, Issac. (1834). ''Nipon o daï itsi ran'', p. 63.</ref> The copper is used to mint ''Wadō Kaihō'' or ''Wadōkaichin,'' which are amongst the oldest examples of coinage in Japan.[https://web.archive.org/web/20070711103841/http://www.mint.go.jp/eng/kids/history.html -- see image of ''Wado Kaichin'' from Japan Mint Museum] *1884: The Chichibu incident: uprising of impoverished peasants under the influence of the Freedom and People's Rights Movement. Seven are sentenced to death and over 4,000 people punished. *1889: Ōmiya Town was founded within Chichibu District, Saitama with the establishment of the municipalities system *1914: The Chichibu Railway opened. *1916: Ōmiya Town was renamed Chichibu Town. *1950: Chichibu was elevated to city status. *1954: Chichibu absorbed the villages of Odamaki, Haraya and Kuna. *1957: Chichibu absorbed the villages of Takashino and Ōta. *1958: Chichibu absorbed the town of Kagemori. *1969: The Seibu Chichibu Line opened. *2005: Chichibu absorbed the town of Yoshida, and the villages of Arakawa and Ōtaki (all from Chichibu District).

==Government== Chichibu has a mayor-council form of government with a directly elected mayor and a unicameral city council of 22 members. Chichibu contributes one member to the Saitama Prefectural Assembly. In terms of national politics, the city is part of Saitama 11th district of the lower house of the Diet of Japan.

==Economy== The local economy of Chichibu remains based on agriculture and forestry, as well as tourism.

==Education== Chichibu has 14 public elementary schools and eight public middle schools operated by the city government, and two public high schools operated by the Saitama Prefectural Board of Education. The prefecture also operates two special education schools for the handicapped.

==Transportation== ===Railway=== Two lines serve the city: the Chichibu Main Line and Seibu Chichibu Line. The Chichibu Railway was constructed along the Arakawa River and first opened in 1914. Seibu Railway reached the city in 1969 and considerably reduced the travel time to Tokyo. It takes approximately one and a half hours to travel from Seibu-Chichibu Station to Ikebukuro Station, one of the major train terminals in Tokyo. These lines carry people as well as limestone from Mount Bukō. The two lines were directly connected on April 1, 1989. Chichibu Railway also operated the Mitsumine Ropeway, which carried passengers visiting {{ill|Mitsumine Shrine|ja|三峯神社}}. The ropeway was taken out of service since May 19, 2006, and was officially abandoned on December 1, 2007.<ref name="mitsumine">{{cite web|url=http://www.saitama-np.co.jp/news10/06/01x.html |title=12月に廃止撤去へ休止中の「三峰ロープウェイ」秩父市「日本一の階段」検討 |access-date=2007-10-07 |url-status=dead |archive-url=https://web.archive.org/web/20071011055259/http://saitama-np.co.jp/news10/06/01x.html |archive-date=2007-10-11 }}</ref>

20px Seibu Railway – Seibu Chichibu Line *{{STN|Seibu-Chichibu|x}} 20px Chichibu Railway – Chichibu Main Line *{{STN|Wadō-Kuroya|x}} – {{STN|Ōnohara|x}} – {{STN|Chichibu|x}} – {{STN|Ohanabatake|x}} – {{STN|Kagemori|x}} – {{STN|Urayamaguchi|x}} – {{STN|Bushū-Nakagawa|x}} – {{STN|Bushū-Hino|x}} – {{STN|Shiroku|x}} – {{STN|Mitsumineguchi|x}}

===Highway=== Two national roads, Route 140 and 299, serve the city. Route 140 connects the city to its nearest expressway interchange, Hanazono Interchange of the Kan-Etsu Expressway. The city had no road communication to Yamanashi Prefecture due to steep Okuchichibu Mountains, but the opening of the Karisaka Tunnel in 1998 enabled the city to connect to Yamanashi.<ref name="karisaka tunnel">[http://www.city.yamanashi.yamanashi.jp/kanko/access/01.html 雁坂トンネル] {{webarchive|url=https://web.archive.org/web/20070205051834/http://www.city.yamanashi.yamanashi.jp/kanko/access/01.html |date=2007-02-05 }}</ref>

* {{jct|country=JPN|Route|140}} * {{jct|country=JPN|Route|299}}

==Sister cities== * {{Flagicon|Japan}} Toshima, Tokyo, since October 14, 1983 * {{Flagicon|Japan}} Sanyō-Onoda, Yamaguchi, since May 20, 1996 * {{Flagicon|United States}} Antioch, California, United States, since September 16, 1967 * {{Flagicon|South Korea}} Gangneung, Gangwon-do, South Korea, since February 16, 1983<ref name=International>{{cite web|url=http://www.clair.or.jp/cgi-bin/simai/e/03.cgi?p=11&n=Saitama%20Prefecture|title=International Exchange|work=List of Affiliation Partners within Prefectures|publisher=Council of Local Authorities for International Relations (CLAIR)|language=en|access-date=21 November 2015|archive-url=https://web.archive.org/web/20160104170705/http://www.clair.or.jp/cgi-bin/simai/e/03.cgi?p=11&n=Saitama%20Prefecture|archive-date=4 January 2016|url-status=dead}}</ref> * {{Flagicon|China}} Linfen, Shanxi Province, China, since October 7, 1988<ref name=International/> * {{Flagicon|Australia}} Warringah, Australia, since April 26, 1996<ref name=International/> * {{flagicon|Thailand}} Yasothon, Yasothon Province, Thailand, since May 6, 1999<ref name=International/>

==Local attractions== <gallery> Chichibu ryusei Fes 1.jpg|Ryusei festival in Yoshida town Misotsuchi Icicles 120215a.JPG|Icicles of the Misotsuchi Chichibu Yomatsuri.jpg|Chichibu Night Traditional Festival Hitsujiyama-park Phlox subulata 2005.jpg|Hitsujiyama-park Phlox subulata Chichibu-jinja Honden 01.jpg|A main gate in Chichibu Shrine </gallery> On December 3, Chichibu holds an annual night festival (Intangible cultural heritage). It attracts crowds from Chichibu, Saitama prefecture, neighboring Tokyo, and the Kantō region. Kawase matsuri is Chichibu shrine's summer festival. It takes place every July 19 and July 20. Eight groups carrying special ''dashi'' floats march along to festival music around the city. ''Mikoshi'' (sacred portable shrines) are brought to special places in each neighborhood where they are enshrined. Neighborhood association heads wash the ''mikoshi'' in the Arakawa River.

Other attractions of the city include:

*Chichibu 34 Kannon Pilgrimage *Chichibu Muse Park *Chichibu Shrine *Hitsujiyama Park *Lake Chichibu *Mitsumine Shrine *Nakatsugawa Gorge *Okuchichibu Mountains

==In popular media== As a picturesque area within fairly easy reach of Tokyo, Chichibu has been much photographed. However, the photography of Chichibu by the Chichibu native Bukō Shimizu (1913–1995) is particularly extensive: Shimizu presented photographs of the mountains, people and customs of Chichibu in numerous books for the Japanese market, starting in 1954.<ref name="nsj">Mihashi Sumiyo ({{nihongo2|三橋純予}}), "Shimizu Bukō", ''Nihon shashinka jiten'' ({{nihongo2|日本写真家事典}}) / 328 Outstanding Japanese Photographers (Kyoto: Tankōsha, 2000; {{ISBN|4-473-01750-8}}), p.175. {{in lang|ja}} (Despite the English-language alternative title, all in Japanese.)</ref><ref name="yukari">{{cite web |url= http://www.pref.saitama.lg.jp/site/ijindatabase/syosai-154.html|archive-url= https://web.archive.org/web/20110927153913/http://www.pref.saitama.lg.jp/site/ijindatabase/syosai-154.html|url-status= dead|archive-date= 27 September 2011|script-title=ja:埼玉ゆかりの偉人/検索結果（詳細）/清水武甲|date= 19 March 2010|publisher= Saitama Prefecture|location= Saitama, Japan|language=ja |access-date= 2 August 2012}}</ref>

The town of Chichibu is the setting for the popular anime series ''Anohana: The Flower We Saw That Day'' and the anime films ''The Anthem of the Heart'' and ''Her Blue Sky'', all of which were written by Mari Okada who was born in Chichibu.<ref>{{Cite news|url=https://www.animenewsnetwork.com/feature/2016-03-25/touring-the-real-life-anohana/.100253|first=Ken|last=Iikura-Gross|date=March 26, 2016|work=Anime News Network|title=Touring The Real-Life Anohana|access-date= July 18, 2025}}</ref>

=== Possible connection with ''The Mikado'' === The city considers itself as the inspiration for Gilbert and Sullivan's 1885 comic opera, ''The Mikado''; the name of the opera's setting, "Titipu", is pronounced "Chichipu" in Japanese. Rokusuke Ei, a popular essayist, was convinced that Chichibu, the site of a peasant uprising in 1884, inspired the author, W. S. Gilbert, to set the opera in Japan. Other Japanese researchers have concluded that Gilbert may simply have heard of Chichibu silk, an important export in the 19th century. A theatre company from Chichibu first presented ''The Mikado'' in Japanese in Chichibu on March 10, 2001, performed by local actors, and throughout other locations in Japan.<ref>[http://www.tkyt.com/mikado/buxton/e/mikado1.html Sumiko Enbutsu: ''The Mikado in the Town of Chichibu''] {{webarchive |url=https://web.archive.org/web/20120220170325/http://www.tkyt.com/mikado/buxton/e/mikado1.html |date=February 20, 2012 }}</ref><ref>Brooke, James. [https://www.nytimes.com/2003/04/03/international/asia/03JAPA.html "Japanese Hail ''The Mikado'', Long-Banned Imperial Spoof"], ''The New York Times'', 3 April 2003, accessed 15 July 2014</ref> In August 2006, it travelled with this production to the International Gilbert and Sullivan Festival in Buxton, England.<ref>[https://www.gs-festival.co.uk/FestivalHighLights/?HL=3] {{webarchive|url=https://web.archive.org/web/20060904224154/https://www.gs-festival.co.uk/FestivalHighLights/?HL=3|date=September 4, 2006}}; and [http://72.14.205.104/search?q=cache:dEUhyQBNP-4J:www.japansociety.org.uk/reviews/reviews.pdf+%22The+Mikado%22+businessmen+Tokyo+production&hl=en&gl=us&ct=clnk&cd=16&lr=lang_en]</ref>

==World's Oldest Artificial Structure Found in Chichibu== Japanese archaeologists have uncovered the remains of what is believed to be the world's oldest artificial structure, on a hillside at Chichibu, north of Tokyo.

The shelter would have been built by an ancient ancestor of humans, Homo erectus, who is known to have used stone tools. The site has been dated to half a million years ago, according to a report in New Scientist.

It consists of what appear to be 10 post holes, forming two irregular pentagons which may be the remains of two huts. Thirty stone tools were also found scattered around the site.

==Notable people== * Seijuro Arafune, Former Minister of Transport * Tatsuya Fujiwara, actor<ref>[https://www.imdb.com/name/nm0297885/ Internet Movie Database]</ref> * Wakachichibu Komei, former sumo wrestler * Arisa Nakajima, professional wrestler<ref>{{cite web|url=http://jwpinfo.blog53.fc2.com/blog-entry-200.html |title=JWP女子プロレス中島安里紗 |trans-title=JWP Female Professional Wrestling: Arisa Nakajima |date=2005 |work=JWP Official Information |publisher=JWP Female Professional Wrestling |location=Japan |language=ja |archive-url=https://web.archive.org/web/20131215065739/http://jwpinfo.blog53.fc2.com/blog-entry-200.html |archive-date=2013-12-15 |access-date=2 August 2012 |url-status=dead }}</ref> * Mari Okada, screenwriter and director<ref>[https://www.imdb.com/name/nm2584046/ Mari Okada IMDB]</ref> *Akihito Ozawa, footballer * Bukō Shimizu, photographer<ref name="yukari" /> * Akira Taue, professional wrestler<ref>{{cite web|url= http://www.noah.co.jp/profile004.php|title= Akira Taue profile|work= Pro Wrestling NOAH Official Site|publisher= NOAH|location= Japan|language= ja|access-date= 2 August 2012|archive-url= https://web.archive.org/web/20111221091656/http://www.noah.co.jp/profile004.php|archive-date= 21 December 2011|url-status= dead}}</ref>

==See also== * Tabidachi no Hi ni - Popular Japanese graduation song that originated in the city

==Further reading== * Titsingh, Isaac, ed. (1834). [Siyun-sai Rin-siyo/Hayashi Gahō, 1652], ''Nipon o daï itsi ran; ou, Annales des empereurs du Japon, tr. par M. Isaac Titsingh avec l'aide de plusieurs interprètes attachés au comptoir hollandais de Nangasaki; ouvrage re., complété et cor. sur l'original japonais-chinois, accompagné de notes et précédé d'un Aperçu d'histoire mythologique du Japon, par M. J. Klaproth''. Paris: Oriental Translation Fund of Great Britain and Ireland. [https://books.google.com/books?id=18oNAAAAIAAJ&dq=nipon+o+dai+itsi+ran ...Click link for digitized, full-text copy of this book (in French)]

== Prehistoric shelter discovered in Japan ==

Japanese archaeologists have identified the remains of what may be the world's oldest artificial structure, located on a hillside in Chichibu, north of Tokyo. This discovery offers new perspectives on early architectural practices in Asia.<ref name="BBCNews">{{cite news |last1=Whitehouse |first1=David |title=World's oldest hut found |url=http://news.bbc.co.uk/2/hi/science/nature/662794.stm |access-date=March 14, 2026 |work=BBC News |date=2000-03-01 |language=en}}</ref>

The shelter is believed to have been constructed by ''Homo erectus'', an early human ancestor known for the use of stone tools. According to a report published in ''New Scientist'', the archaeological site has been dated to approximately 500,000 years ago.<ref name="BBCNews" />

The structure consists of ten post holes forming two irregular pentagons, suggesting the former existence of two distinct huts. In addition to the ground markings, thirty stone tools were found scattered across the vicinity.<ref name="BBCNews" /> Prior to this find, the oldest known remains of a human-made structure were those identified at Terra Amata in France. Those French archaeological remains date back to a period between 200,000 and 400,000 years ago, making the Chichibu discovery significantly older.<ref name="BBCNews" />

=== References === {{reflist}}

==External links== {{Commons category|Chichibu, Saitama}} {{Wikivoyage|Chichibu}} * [http://www.city.chichibu.lg.jp/ Official Website] {{in lang|ja}} * [https://www.chichibu-omotenashi.com/en/index.html Chichibu Area Tourism Organization] * [http://www.chichibuji.gr.jp/ Institute Chichibu tourism organizations] * [https://www.atlasobscura.com/places/hall-of-curious-stones The Hall of Curious Stones], a private museum in Chichibu]

Category:Cities in Saitama Prefecture Category:Chichibu, Saitama Category:Chichibu District, Saitama