Japanese people

The Japanese people are an ethnic group originating in the Japanese archipelago and are the predominant ethnic group of Japan. Worldwide, approximately 130 million people are of Japanese descent; of these, approximately 127 million are residents of Japan. People of Japanese ancestry who live in other countries are referred to as nikkeijin (日系人). The term "Japanese people" may also be used in some contexts to refer to a locus of ethnic groups including the Yamato, Ainu and Ryukyuan people.

Language
The Japanese language is a Japonic language that is sometimes treated as a language isolate; it is also related to the Ryukyuan languages, and both are suggested to be part of the proposed Altaic language family. The Japanese language has a tripartite writing system using Hiragana, Katakana, and Kanji. Domestic Japanese people use primarily Japanese for daily interaction. The adult literacy rate in Japan exceeds 99%.

Religion
Japanese religion has traditionally been syncretic in nature, combining elements of Buddhism and Shinto. Shinto, a polytheistic religion with no book of religious canon, is Japan's native religion. Shinto was one of the traditional grounds for the right to the throne of the Japanese imperial family, and was codified as the state religion in 1868 (State Shinto was abolished by the American occupation in 1945). Mahayana Buddhism came to Japan in the sixth century and evolved into many different sects. Today the largest form of Buddhism among Japanese people is the Jōdo Shinshū sect founded by Shinran.

Most Japanese people (84% to 96%) profess to believe in both Shinto and Buddhism. The Japanese people's religion functions mostly as a foundation for mythology, traditions, and neighborhood activities, rather than as the single source of moral guidelines for one's life.

Literature
Certain genres of writing originated in and are often associated with Japanese society. These include the haiku, tanka, and I Novel, although modern writers generally avoid these writing styles. Historically, many works have sought to capture or codify traditional Japanese cultural values and aesthetics. Some of the most famous of these include Murasaki Shikibu's The Tale of Genji (1021), about Heian court culture; Miyamoto Musashi's The Book of Five Rings (1645), concerning military strategy; Matsuo Bashō's Oku no Hosomichi (1691), a travelogue; and Jun'ichirō Tanizaki's essay "In Praise of Shadows" (1933), which contrasts Eastern and Western cultures.

Following the opening of Japan to the West in 1854, some works of this style were written in English by natives of Japan; they include Bushido: The Soul of Japan by Nitobe Inazo (1900), concerning samurai ethics, and The Book of Tea by Okakura Kakuzo (1906), which deals with the philosophical implications of the Japanese tea ceremony. Western observers have often attempted to evaluate Japanese society as well, to varying degrees of success; one of the most well-known and controversial works resulting from this is Ruth Benedict's The Chrysanthemum and the Sword (1946).

Twentieth-century Japanese writers recorded changes in Japanese society through their works. Some of the most notable authors included Natsume Sōseki, Jun'ichirō Tanizaki, Osamu Dazai, Yasunari Kawabata, Fumiko Enchi, Yukio Mishima, and Ryotaro Shiba. In contemporary Japan, popular authors such as Ryu Murakami, Haruki Murakami, and Banana Yoshimoto are highly regarded.

Arts
Decorative arts in Japan date back to prehistoric times. Jōmon pottery includes examples with elaborate ornamentation. In the Yayoi period, artisans produced mirrors, spears, and ceremonial bells known as dōtaku. Later burial mounds, or kofun, preserve characteristic clay haniwa, as well as wall paintings.

Beginning in the Nara period, painting, calligraphy, and sculpture flourished under strong Confucian and Buddhist influences from China. Among the architectural achievements of this period are the Hōryū-ji and the Yakushi-ji, two Buddhist temples in Nara Prefecture. After the cessation of official relations with the Tang Dynasty in the ninth century, Japanese art and architecture gradually became less influenced by China. Extravagant art and clothing was commissioned by nobles to decorate their court life, and although the aristocracy was quite limited in size and power, many of these pieces are still extant. After the Todai-ji was attacked and burned during the Gempei War, a special office of restoration was founded, and the Todai-ji became an important artistic center. The leading masters of the time were Unkei and Kaikei.

Painting advanced in the Muromachi period in the form of ink and wash painting under the influence of Zen Buddhism as practiced by such masters as Sesshū Tōyō. Zen Buddhist tenets were also elaborated into the tea ceremony during the Sengoku period. During the Edo period, the polychrome painting screens of the Kano school were made influential thanks to their powerful patrons (including the Tokugawas). Popular artists created ukiyo-e, woodblock prints for sale to commoners in the flourishing cities. Pottery such as Imari ware was highly valued as far away as Europe.

In theater, Noh is a traditional, spare dramatic form that developed in tandem with kyōgen farce. In stark contrast to the restrained refinement of noh, kabuki, an "explosion of color," uses every possible stage trick for dramatic effect. Plays include sensational events such as suicides, and many such works were performed in both kabuki and bunraku puppet theaters.

Since the Meiji Restoration, Japan has absorbed elements of Western culture. Its modern decorative, practical, and performing arts works span a spectrum ranging from the traditions of Japan to purely Western modes. Products of popular culture, including J-pop, manga, and anime have found audiences around the world.

Theories of origins
Arai Hakuseki, who knew in the 18th century that there were stone tools in Japan, suggested that there was Shukushin in ancient Japan, and then Philipp Franz von Siebold claimed that indigenous Japanese was Ainu people. Iha Fuyū suggested that Japanese and Ryukyuan people have the same ethnic origin, based on his 1906 research of the Ryukyuan languages. In the Taishō period, Torii Ryūzō claimed that Yamato people used Yayoi pottery and Ainu used Jōmon pottery.

A common origin of Japanese and Koreans has been proposed by a number of scholars since Arai Hakuseki first brought up the theory and Fujii Sadamoto, a pioneer of modern archeleogy in Japan, also treated the issue in 1781. But after the end of World War II, Kotondo Hasebe and Hisashi Suzuki claimed that the origin of Japanese people was not the newcomers in the Yayoi period (300 BCE – 300 CE) but the people in the Jōmon period.

However, Kazuro Hanihara announced a new racial admixture theory in 1984. Hanihara also announced the theory "dual structure model" in English in 1991. According to Hanihara, modern Japanese lineages began with Jōmon people, who moved into the Japanese archipelago during Paleolithic times from their homeland in southeast Asia. Hanihara believed that there was a second wave of immigrants, from northeast Asia to Japan from the Yayoi period. Following a population expansion in Neolithic times, these newcomers then found their way to the Japanese archipelago sometime during the Yayoi period. As a result, miscegenation was rife in the island regions of Kyūshū, Shikoku, and Honshū, but did not prevail in the outlying islands of Okinawa and Hokkaidō, and the Ryukyuan and Ainu people continued to dominate here. Mark J. Hudson claimed that the main ethnic image of Japanese people was biologically and linguistically formed from 400 BCE to 1,200 CE.

Masatoshi Nei opposed the "dual structure model" and alleged that the genetic distance data show that the Japanese people originated in northeast Asia, moving to Japan perhaps more than thirty thousand years ago. In recent decades since 1979, others have proposed that Yamato people, formerly known as Wōrén in Chinese records, are related to Yízú and Hani people in Yunnan, China, based on archaeological evidence of their folk customs. Several scholars proposed that Yamato people are related to Dai people in Yunnan, based on their Mongolian spots and blood types.

On the other hand, research in October 2009 by the National Museum of Nature and Science et al. concluded that the Minatogawa Man, who was found in Okinawa and was regarded as a reason that Jōmon people came to Japan via the southern route, had a slender face unlike the Jōmon. Hiroto Takamiya of the Sapporo University suggested that the people of Kyushu immigrated to Okinawa between the 10th and 12th centuries CE.

A 2011 study by Sean Lee and Toshikazu Hasegawa estimated that a common origin of Japonic languages had originated around 2,182 years before present.

Origin of Jōmon and Yayoi
Currently, the most well-regarded theory is that present-day Japanese are descendants of both the indigenous Jōmon people and the immigrant Yayoi people. The origins of the Jōmon and Yayoi peoples have often been a subject of dispute, but it is now generally accepted that the Jōmon people were similar to the modern Ainu of northern Japan; the path of their migration may have been from the southwest of China to Mongolia to today's southeastern Russia and then to northeastern Japan, and they probably have lived in Japan since the time of the last glacial age. They brought with them the origins of Japanese culture and religion. Han Chinese and ethnic Korean groups are thought to be the origin of the Yayoi group which entered Japan from the southwest, bringing a more advanced civilization than the native Jōmon people. However, a clear consensus has not been reached.

Paleolithic era
Archaeological evidence indicates that Stone Age people lived in the Japanese archipelago during the Paleolithic period between 39,000 and 21,000 years ago. Japan was then connected to mainland Asia by at least one land bridge, and nomadic hunter-gatherers crossed to Japan from East Asia, Siberia, and possibly Kamchatka. Flint tools and bony implements of this era have been excavated in Japan.

Jōmon people
The world's oldest known pottery was developed by the Jōmon people in the Upper Paleolithic period, 14th millennium BCE. The name, "Jōmon" (縄文 Jōmon), which means "cord-impressed pattern", comes from the characteristic markings found on the pottery. The Jōmon people were Mesolithic hunter-gatherers, though at least one middle to late Jōmon site (Minami Mosote (南溝手), ca. 1200–1000 BCE) had a primitive rice-growing agriculture. They relied primarily on fish for protein. It is believed that the Jōmon had very likely migrated from North Asia or Central Asia and became the Ainu of today. Research suggests that the Ainu retain a certain degree of uniqueness in their genetic make-up, while having some affinities with different regional populations in Japan as well as the Nivkhs of the Russian Far East. Based on more than a dozen genetic markers on a variety of chromosomes and from archaeological data showing habitation of the Japanese archipelago dating back 30,000 years, it is argued that the Jōmon actually came from northeastern Asia and settled on the islands far earlier than some have proposed.

Yayoi people
Around 400–300 BC, the Yayoi people began to enter the Japanese islands, intermingling with the Jōmon. The Yayoi brought wet-rice farming and advanced bronze and iron technology to Japan. Although the islands were already abundant with resources for hunting and dry-rice farming, Yayoi farmers created more productive wet-rice paddy field systems. This allowed the communities to support larger populations and spread over time, in turn becoming the basis for more advanced institutions and heralding the new civilization of the succeeding Kofun period.

The estimated population in the late Jōmon period was about one hundred thousand, compared to about three million by the Nara period. Taking the growth rates of hunting and agricultural societies into account, it is calculated that about one and half million immigrants moved to Japan in the period.

Y-chromosome DNA
An early study of human Y-DNA variation published in 1999 included a sample of 118 Japanese males, among whom haplogroup DE-YAP(xE-SRY4064) was found to be predominant (47%). Other haplogroups detected in this sample include haplogroup K-M9(xN1c-Tat, M2a-SRY9138, P-DYS257) (46%), haplogroup C-RPS4Y711 (5%), haplogroup P-DYS257(xQ1a3a1-DYS199, R1a1-SRY10831) (2%), and haplogroup BT-SRY10831(xC-RPS4Y711, K-M9, DE-YAP) (1%).

A 2004, Y-DNA study by Tajima et al. reported that the Ainu mainly belong to haplogroup D (87.5%).

A 2005 study by Michael F. Hammer reports genetic similarities between the Japanese and several other Asian populations, which shows that the common Y-DNA haplogroups of Japanese are D-P37.1 (34.7%), O-P31 (31.7%), O-M122 (20.1%), C-M8 (5.4%), C-M217 (3.1%), NO (2.3%) and N (1.5%). The patrilines belonging to D-P37.1 are found in all Japanese groups, but are more frequently found in Ainu (75.0%) and Okinawa (55.6%) and are less frequently found in Shikoku (25.7%) and Kyushu (26.4%). Haplogroup O and C-M8 are not found in Ainu, and C-M217 is not found in Okinawa. Haplogroup N is detected in samples of central Japanese, but is not found in Ainu and Okinawa. This study, and others, report that Y-chromosome patrilines crossed from the Asian mainland into the Japanese archipelago, and continue to make up a large proportion of the Japanese male lineage. If focusing haplogroup O-P31 in those researches, the patrilines derived from its subclade O-SRY465 are frequently found in both Japanese (mean 32%, with frequency in various samples ranging from 26% to 36% ) and Koreans (mean 30%, with frequency in various samples ranging from 19% to 40% ). According to the research, these patrilines have undergone extensive genetic admixture with the Jōmon period populations previously established in Japan.

Hammer estimated in 2005 that D-P37.1 and C-M8 emerged around 19,400 and 14,500 years ago respectively and those patrilines are referred to as descendants of indigenous people in Jōmon period. According to a 2008 study by Shi et al., however, if focusing haplogroup D, Andamanese and Tibetan people diverged from the original haplogroup D around from 66,400 to 51,600 years ago, and the Japanese subclade emerged around 37,700 years ago. The study suggested that those patrilines belonging to haplogroup D are possibly the first modern human groups in East Asia based on the Out of Africa theory because their ancestor haplogroup DE is found in African people in Nigeria along with Tibetan in East Asia.

A 2007 study by Nonaka et al. reported that Japanese males in the Kantō region, which includes the Greater Tokyo Area and is the most densely populated region of Japan, mainly belong to haplogroup D2 (48%), haplogroup O2b (31%), haplogroup O3 (15%), or haplogroup C (4%).

A 2010 study by Matsukusa et al. about the peoples in the Sakishima Islands reported that a part of the peoples in Miyako Island and Ishigaki Island also show the marks of YAP+ (53% and 26% respectively), being clearly different from Taiwanese aborigines.

Mitochondrial DNA
A 2002 study by Kivisild et al. reported that Japanese people descended from indigenous Jōmon people may belongs to human mitochondrial DNA haplogroup M's subclades—M7a and M7b2. The matrilines of haplogroup M7 are especially common among Ryukyuans, while the matrilines of haplogroup Y1 among Ainu have been interpreted to suggest Siberian immigration to Japan. Although the study reported that those M7 matrilines seem to emerge in up to 18,000 years ago, the study also pointed out that their settlements may have occurred over 30,000 years ago if there was a population bottleneck in Japan.

After a 2004 study by Tanaka et al. showed that Japanese belongs to various human mitochondrial DNA haplogroups—A, B, C, D, F, G, M, N and Z, a 2008 study by Bilal et al. estimated that haplogroup D4a is related to longevity among Japanese people.

A 2008 study by Nohira et al. reported that Japanese and Koreans shared various haplotypes of haplogroup D4.

Single-nucleotide polymorphism
A 2008 study about genome-wide single-nucleotide polymorphisms (SNPs) by Yamaguchi-Kabata et al. reported that the most significant difference between Ryukyuan and Japanese outside Okinawa is the different frequencies of the T allele of rs3827760 in the human EDAR gene.

A 2008 study about genome-wide SNPs of East Asians by Chao Tian et al. reported that Japanese, Koreans and Han Chinese are far from southeast Asians, and Japanese is related to Koreans who are related to Han Chinese, but Japanese is relatively far from Han Chinese if compared to Koreans. However in another large genome-wide association study of East Asian populations, the Japanese are closer to Han Chinese, but the Koreans are relatively far away from Han Chinese if compared to Japanese. This study also included Native Americans, Vietnamese, Cambodians, Europeans and Africans.

Another study done in 2010 about the peopling of Northeast Asia by Jongsun Jung et al. found that, going by Identity By State (a more accurate indicator of genetic similarity and distance compared to Fixation Index) results, the Japanese are more related to the Vietnamese when compared to the Mongolians and Koreans. The Koreans and Mongolians were found to be the least genetically related to the Vietnamese. This is most likely due to greater admixture of Japanese from founding populations of Southeast Asia. However further studies need to be conducted to infer about relationships between the Jomon Japanese and their genetic relationships to other East Asian ethnic groups to better understand the origins of the Japanese people.

Japanese colonialism


During the Japanese colonial period of 1895 to 1945, the phrase "Japanese people" was used to refer not only to residents of the Japanese archipelago, but also to people from occupied territories who held Japanese citizenship, such as Taiwanese people and Korean people. The official term used to refer to ethnic Japanese during this period was "inland people" (内地人). Such linguistic distinctions facilitated forced assimilation of colonized ethnic identities into a single Imperial Japanese identity.

After the end of World War II, many Nivkh people and Orok people from southern Sakhalin, who held Japanese citizenship in Karafuto Prefecture, were forced to repatriate to Hokkaidō by the Soviet Union as a part of Japanese people. On the other hand, many Sakhalin Koreans who had held Japanese citizenship until the end of the war were left stateless by the Soviet occupation.

Japanese diaspora
The term nikkeijin (日系人) is used to refer to Japanese people who emigrated from Japan and their descendants.

Emigration from Japan was recorded as early as the 12th century to the Philippines, but did not become a mass phenomenon until the Meiji Era, when Japanese began to go to the Philippines, United States, Canada, Peru, Brazil, and Argentina. There was also significant emigration to the territories of the Empire of Japan during the colonial period; however, most such emigrants repatriated to Japan after the end of World War II in Asia.

According to the Association of Nikkei and Japanese Abroad, there are about 2.5 million nikkeijin living in their adopted countries. The largest of these foreign communities are in the Brazilian states of São Paulo and Paraná. There are also significant cohesive Japanese communities in the Philippines, Peru, Argentina, and the U.S states of Hawaii, California, and Washington. There is also a small group of Japanese descendants living in Caribbean countries such as Cuba and the Dominican Republic, where hundreds of these immigrants were brought in by Rafael L. Trujillo in the 1930s.