Sakae Ōsugi

Who They Were

Sakae Ōsugi (大杉栄, おおすぎ さかえ) was a Japanese anarchist writer, journalist, and activist active during the Meiji and Taishō periods. Born 17 January 1885 in Marugame, he died on 16 September 1923 in Tokyo, murdered by military police in the aftermath of the Great Kantō earthquake. His thought centred on individualism, direct action, and the "expansion of the ego" as philosophical foundations for both personal and social revolution.

Ōsugi was a translator, Esperantist, and socialist who became one of the most prominent voices in the Japanese anarchist movement. His work spanned journalism, labour organising, and the introduction of European radical philosophy to Japanese readers.

Life and Career

Ōsugi was born into a military family. He was expelled from military school for insubordination, an early sign of the defiance that would define his life. He then turned to language studies and radical politics in Tokyo.

Between 1906 and 1910, Ōsugi served a series of prison terms. He later described these periods of incarceration as his "real education." Prison hardened his convictions and connected him to a network of fellow radicals. By the end of this stretch, he had emerged as a leading figure in the Japanese anarchist movement.

Through his journals, Ōsugi introduced European thinkers to Japan. He published Kindai shisō (Modern Thought) and Rōdō undō (The Labor Movement), using these venues to present the ideas of Peter Kropotkin, Georges Sorel, and Henri Bergson. He did not simply translate; he synthesised their work into his own philosophy, blending anarchist communism, syndicalism, and Bergsonian vitalism into a doctrine of individual liberation.

Ōsugi's advocacy of free love made his personal life a public matter. He maintained simultaneous relationships with three women, a situation that provoked a violent attack against him in 1916. The incident led to his temporary ostracism from the socialist movement, though he later returned to prominence.

In the labour movement, Ōsugi championed syndicalism and workers' autonomy. He was sharply critical of state authority and equally hostile to the emerging Bolshevism, which he saw as a new form of domination. His position placed him between the state and the growing communist faction within the Japanese left.

The end came in the chaos following the 1923 Great Kantō earthquake. Ōsugi, his partner and fellow anarchist Itō Noe, and his six-year-old nephew were arrested by a squad of military police led by Captain Amakasu Masahiko. They were beaten and strangled, and their bodies were disposed of in a well. The murders became known as the Amakasu Incident.

Why They Matter

Ōsugi matters because he gave Japanese anarchism its intellectual backbone. Before him, the movement was largely a matter of imported slogans. He turned it into a serious philosophical project, grounded in the idea that personal liberation and social revolution were inseparable.

His journals were the primary channel through which European radical thought reached a Japanese audience in the 1910s. Kropotkin's mutual aid, Sorel's myth of the general strike, and Bergson's creative evolution all entered Japanese political discourse through Ōsugi's translations and commentaries.

His critique of Bolshevism proved prescient. At a time when many socialists looked to the Russian Revolution with hope, Ōsugi warned that a centralised party state would reproduce the very hierarchies anarchists sought to abolish. That argument shaped the split between anarchists and communists in the Japanese left.

The Amakasu Incident made him a martyr. His murder, along with Itō Noe and his nephew, became a symbol of state violence against radicals. The fact that the killers faced only light punishment—Amakasu was sentenced to ten years and released early—underscored the vulnerability of dissenters in imperial Japan.

The Name in Japanese

The name is written 大杉栄 in Japanese.

• Kana reading: おおすぎ さかえ
• Romaji: Ōsugi Sakae

Character breakdown:

• 大 (おお, ō): "big" or "great." This is the same character used in 大学 (だいがく, university, literally "great learning").
• 杉 (すぎ, sugi): "cedar," specifically the Japanese cedar (Cryptomeria japonica). This is a common element in Japanese surnames.
• 栄 (さかえ, sakae): "prosperity" or "flourishing." The character appears in words like 栄える (さかえる, to prosper) and 栄養 (えいよう, nutrition).

The family name is Ōsugi, and the given name is Sakae. In Japanese order, the family name comes first: Ōsugi Sakae. The reading おおすぎ uses the character 大 with the long vowel ō, which is why the romaji is Ōsugi rather than Osugi.

Legacy

Ōsugi's writings remained suppressed through the militarist era, but his ideas resurfaced after 1945. Postwar anarchists and New Left activists in the 1960s found in him a precursor who had faced down both state power and authoritarian socialism.

The Amakasu Incident continues to be taught as a cautionary tale about state violence in times of crisis. The earthquake's chaos was used as cover for the elimination of political enemies, and Ōsugi was the most prominent victim.

His insistence on the "expansion of the ego" as a revolutionary principle remains his most distinctive contribution. Where many radicals subordinated the individual to the collective, Ōsugi insisted that revolution had to begin with the self. That position has kept his work relevant to later generations of Japanese thinkers concerned with autonomy and authenticity.

In Marugame, his birthplace, a memorial honours his life and work. The city that produced the military family's rebellious son now claims him as a native son of a different kind.