Honda Toshiaki

Who They Were

Honda Toshiaki (本多利明, ほんだ としあき) was a Japanese scholar of the late Edo period, born in 1744 and dead in Edo on 25 January 1821. He worked as a philosopher, economist, political scientist and mathematician, and is remembered above all as a political economist who argued that Japan should open itself to foreign trade and expand northward.

He was born in Murakami, in the Echigo region, the territory facing the Sea of Japan. His career unfolded entirely within the Edo period, the long stretch of Tokugawa rule that ran from 1603 to 1868, and his birth fell in Enkyō 延享 (えんきょう), the first year of that era name.

Honda belonged to a category of thinker that the Tokugawa order did not officially encourage: a commoner-scholar who studied the world beyond Japan's borders at a time when the shogunate restricted contact with it. He never held high office. His influence came from what he wrote.

Life and Career

Honda left Echigo for Edo, the shogunal capital, to study. His subjects there were astronomy, mathematics and kendō 剣道 (けんどう), the Japanese art of swordsmanship. At the age of 24 he opened his own school, which placed him in the familiar Edo pattern of the private academy run by a single master for fee-paying students.

Mathematics and astronomy were the practical sciences of the day, and they shaped how Honda thought about geography, navigation and national resources. His reputation rests on two books, both written in 1798. The first, Keisei Hisaku 経世秘策 (けいせい ひさく), which translates roughly as A Secret Plan of Government, proposed lifting the ban on foreign trade and colonising Ezo — the northern island now called Hokkaidō. The second, Seiiki Monogatari 西域物語 (せいいき ものがたり), or Tales of the West, described the wider world as Honda understood it.

Honda was a polymath with real knowledge of Western countries. He argued that Japan should imitate the policies of England, another island nation, and he called for the state to promote national wealth and strength more actively. He set out four concrete goals: the production of gunpowder, the smelting of iron and other metals, the creation of a merchant fleet, and the settlement of Ezo in the north.

He died in Edo on 25 January 1821, at the age of 77 by Japanese reckoning of the period.

Why They Matter

Honda wrote his proposals at a moment when the Tokugawa shogunate had spent nearly two centuries limiting foreign contact and forbidding most overseas trade. His call to lift that ban was not a minor administrative suggestion; it was a direct challenge to a founding principle of the regime.

His four goals read as a single programme. Gunpowder and metal smelting supply the material base of military power. A merchant fleet supplies the means to move goods and people by sea. The settlement of Ezo supplies land, resources and a defensive frontier to the north. Together they describe a maritime, industrialising state on the English model, and Honda said so explicitly, naming England as the example Japan should follow.

That combination — a named foreign model, a naval strategy, and northern colonisation — places Honda among the writers whose arguments anticipated the debates that tore Japan open in the nineteenth century. The shogunate did eventually reverse course on foreign trade, and Ezo was indeed settled and renamed Hokkaidō. Honda did not live to see either.

The Name in Japanese

The name is written 本多利明. It is read ほんだ としあき in kana, and rendered in romaji as Honda Toshiaki. The family name comes first, as is standard in Japanese.

本 (ほん, hon) — the first character of the surname. It means "book" or "origin", and in this compound it carries the sense of "base" or "main". It is one of the most common kanji in Japanese, appearing in everyday words such as 本 (ほん, a book) and 日本 (にほん, Japan).

多 (だ, da) — the second character of the surname. It means "many" or "much". Note the sound change: the character is normally read た (ta) on its own, but in 本多 it voices to だ (da). This kind of voicing, where a plain consonant becomes a voiced one inside a compound, is extremely common in Japanese names and vocabulary.

Together, 本多 (ほんだ, Honda) is a surname shared by many Japanese families. It has no connection to the car manufacturer of the same romanised spelling; that company writes its name 本田, with a different second character meaning "rice field".

利 (とし, toshi) — the first character of the given name. It means "profit", "benefit" or "sharp". Here it supplies the とし element of the reading.

明 (あき, aki) — the second character of the given name. It means "bright", "clear" or "light". It is the same character found in 明治 (めいじ, Meiji), the era name adopted in 1868.

The given name 利明 is read としあき. Readings of this kind, where each kanji contributes a native Japanese sound rather than a Chinese-derived one, are called kun'yomi 訓読み (くんよみ). Japanese given names frequently mix kun and on readings in ways that are not predictable from the characters alone, which is why a name's kanji and its pronunciation must be learned together.

Legacy

Honda Toshiaki's two books of 1798 circulated as manuscripts and arguments rather than as government policy. He spent his life as a teacher and scholar in Edo, not as an official, and the shogunate did not adopt his programme in his lifetime.

What survived was the reasoning. The idea that Japan was an island nation that should behave like England, that it needed a merchant fleet and heavy industry, and that its northern frontier should be settled and defended, became central questions in Japanese political thought in the decades after his death in 1821. Later readers found in Honda an early and unusually concrete statement of those positions, written while the ban on foreign trade was still in force.

His name is now attached to the intellectual current that looked outward from Japan before the country was forced to do so.