Understanding Mainichi Shimbun: A Legacy of Japanese Journalism
Mainichi Shimbun (literally "Daily Newspaper") stands as one of the most influential media institutions in Japan. As one of the country's four major national newspapers, it provides comprehensive coverage of domestic and international affairs, maintaining a significant presence through both print and digital platforms. With a history stretching back to the Meiji period, the publication has evolved from two separate regional papers into a massive media group with global reach.

Key Facts
- Founded: February 21, 1872 (as Tokyo Nichi Nichi Shimbun).
- Status: One of Japan's four major national newspapers.
- Political Alignment: Centre to centre-left Liberalism.
- Circulation: Approximately 1,349,000 for the morning edition and 430,000 for the evening edition (2024 data).
- Major Achievement: The only Japanese newspaper to win a Pulitzer Prize (1960).
Company Overview and Reach
Mainichi Shimbun is published by The Mainichi Newspapers Co. and operates a vast network consisting of 3,200 employees across 364 offices in Japan and 26 overseas bureaus. The organization is a major player in the Japanese media landscape, with 79 associated companies, including the Tokyo Broadcasting System (TBS) and Mainichi Broadcasting System (MBS).
Beyond its primary daily newspaper, the group manages a diverse portfolio of media products, including:
- The Mainichi: An English-language news website (formerly Mainichi Daily News).
- Mainichi Weekly: A bilingual news magazine.
- Sunday Mainichi: A weekly news magazine.
- Books and Paperbacks: Various published works and magazines.

Organizational Structure
| Category | Details |
|---|---|
| Format | Blanket (54.6 cm x 40.65 cm) |
| Publisher | Masato Kitamura |
| Headquarters | Chiyoda, Tokyo (with offices in Osaka, Nagoya, and Kitakyushu) |
| Language | Japanese (Primary); English (Digital) |
| Political Stance | Centre to centre-left Liberalism |
Historical Evolution
The roots of the modern Mainichi Shimbun lie in the Meiji era with the founding of two distinct publications: the Tokyo Nichi Nichi Shimbun in 1872 and the Osaka Mainichi Shimbun in 1876. For decades, these two entities operated independently. They merged in 1911, but it was not until 1943 that both editions were unified under the single "Mainichi Shimbun" masthead.
Throughout its history, the paper has been a leader in journalism, earning the Japan Newspapers Association's Grand Prix award 21 times—the most frequent winner since the award's inception in 1957. Notably, it won the 1960 Pulitzer Prize for its coverage of the "Tokyo Stabbing," a photograph capturing the assassination of Japan Socialist Party chairman Inejirō Asanuma.

Controversies and Critical Moments
The Sino-Japanese War Coverage
One of the most significant controversies in the paper's history involves its coverage of the 1937 "hundred-man killing contest." During the advance from Shanghai to Nanjing, the Osaka Mainichi Shimbun and Tokyo Nichi Nichi Shimbun reported on a competition between two Japanese Army second lieutenants, Toshiaki Mukai and Tsuyoshi Noda, to see who could kill 100 people with a sword first. While these reports were published as heroic feats at the time, modern historians and other soldiers have questioned the improbability of such combat claims, suggesting they may have been fabrications or related to the mass killing of prisoners.


The WaiWai Column Controversy
In 2008, the English-language publication Mainichi Daily News faced intense criticism regarding its "WaiWai" column. Written by Australian journalist Ryann Connell, the column featured sensationalist stories often sourced from Japanese tabloids. Following an aggressive online campaign accusing the column of being vulgar and propagating racist stereotypes, the Digital Media Division shut down the column. The company issued a formal apology, citing a failure to check information and the publication of indecent content, and implemented disciplinary measures for the staff involved.
Reporting on Racial Profiling
In April 2024, Mainichi published an investigative report regarding racial profiling within Japanese police departments. The report featured testimony from a former inspector who alleged that certain officers were instructed to target foreigners—specifically those with darker skin—for questioning and searches. The investigation highlighted a growing number of complaints regarding police conduct toward foreign residents.
Cultural Contributions
Mainichi Shimbun is deeply integrated into Japanese culture through the sponsorship of major events. It is well known for hosting the Senbatsu High School baseball tournament at Koshien Stadium and various summer and fall baseball tournaments at the Tokyo Dome and Osaka Dome. Additionally, the company sponsors prominent long-distance running events, such as the Lake Biwa Marathon and the Beppu-Ōita Marathon.
Frequently Asked Questions
What are the four major national newspapers in Japan?
The four major national newspapers are Mainichi Shimbun, Asahi Shimbun, Yomiuri Shimbun, and Nihon Keizai Shimbun.
Does Mainichi Shimbun have an English version?
Yes, the company operates an English-language news website called The Mainichi (formerly known as Mainichi Daily News).
What is the political leaning of Mainichi Shimbun?
The newspaper is generally characterized as having a centre to centre-left liberal political alignment.
Where is the Mainichi Shimbun headquartered?
The corporate headquarters is located in Chiyoda, Tokyo, though the company maintains major offices in Osaka, Nagoya, and Kitakyushu.
How does Mainichi Shimbun contribute to Japanese sports?
The company sponsors several major sporting events, most notably the Senbatsu High School baseball tournament and various annual road running marathons like the Lake Biwa Marathon.