Treaty of Kanagawa

The Treaty of Kanagawa (1854) was an agreement negotiated by Commodore Matthew Perry that opened two Japanese ports to American ships, ending over two centuries of Japanese isolation and extending Manifest Destiny across the Pacific (APUSH Topic 5.2).

What is the Treaty of Kanagawa?

The Treaty of Kanagawa was an 1854 agreement between the United States and Japan, negotiated after Commodore Matthew Perry sailed a fleet of steam-powered warships into Tokyo Bay in 1853. Japan had kept itself almost completely closed to Western trade for more than 200 years. Perry's show of force (sometimes called "gunboat diplomacy") convinced Japanese officials to sign. The treaty opened two ports to American ships for supplies and refueling, guaranteed help for shipwrecked American sailors, and allowed a U.S. consul in Japan. Full commercial trade came a few years later, but Kanagawa cracked the door open.

For APUSH, the treaty matters less as a Japan story and more as an America story. By 1854 the U.S. had reached the Pacific (Oregon, the Mexican Cession, Gold Rush California), and expansionists immediately started looking past the coastline. Kanagawa is Manifest Destiny going offshore. The same logic that justified annexing western lands, belief in the superiority of American institutions and the hunger for markets and resources, now pushed American power across the ocean.

Why the Treaty of Kanagawa matters in APUSH

This term lives in Unit 5, Topic 5.2 (Manifest Destiny) and supports learning objective APUSH 5.2.A, explaining the causes and effects of westward expansion from 1844 to 1877. The CED's essential knowledge points are about the desire for resources and economic opportunity (KC-5.1.I.A) and the Manifest Destiny argument that the U.S. was compelled to expand to the Pacific (KC-5.1.I.B). Kanagawa is the proof that "to the Pacific" didn't mean stopping at the Pacific. Once California was American, Asian markets were the next prize, and Japan sat right on the shipping route. The treaty also sets up a long-running APUSH thread (the America in the World theme) that runs from Manifest Destiny through Alaska and Hawaii to the Open Door Policy in Unit 7. If you can trace that line, you have a ready-made continuity argument.

How the Treaty of Kanagawa connects across the course

Commodore Matthew Perry (Unit 5)

Perry is the person, Kanagawa is the result. His 1853 expedition with intimidating steam warships pressured Japan into signing the 1854 treaty. On the exam, the two names are basically interchangeable in MCQ stems, so know both.

California Gold Rush (Unit 5)

The Gold Rush gave the U.S. a booming Pacific coast population and ports like San Francisco. That's exactly why Asian trade suddenly looked reachable. Kanagawa is what a Pacific-facing America did with its new coastline.

Open Door Policy (Unit 7)

Kanagawa and the Open Door Policy are the same goal, access to Asian markets, separated by 45 years. In 1854 the target was Japan; in 1899 it was China. Pairing them makes a strong continuity-and-change point about American economic expansion in Asia.

Alaska & Hawaii Expansion (Units 5 and 7)

Buying Alaska (1867) and annexing Hawaii (1898) follow the same Pacific stepping-stone logic that Kanagawa started. Each move extended American reach toward Asian trade routes.

Is the Treaty of Kanagawa on the APUSH exam?

Multiple-choice questions usually test this term one of two ways. The recall version asks which treaty opened Japan to American trade in 1854 (answer: Kanagawa), or what Perry's expedition was trying to do (open Japan to American commerce). The harder version asks what the treaty "most directly reflected" about mid-19th-century foreign policy, and the answer points to the expansion of American commercial interests into Asia, an extension of Manifest Destiny. No released FRQ has used the term verbatim, but it's excellent evidence in essays about the causes and effects of westward expansion (APUSH 5.2.A) or in a continuity argument linking 1850s Pacific ambitions to 1890s imperialism. Drop it as the moment Manifest Destiny jumped the ocean.

The Treaty of Kanagawa vs Open Door Policy

Both are about American access to Asian markets, but they're different countries and different eras. The Treaty of Kanagawa (1854) was a formal treaty that opened Japanese ports, negotiated by Perry under threat of force during the Manifest Destiny era (Unit 5). The Open Door Policy (1899) wasn't a treaty at all; it was a set of diplomatic notes asking European powers to keep trade in China open to everyone, during the imperialism era (Unit 7). Quick check: Kanagawa equals Japan and 1854, Open Door equals China and 1899.

Key things to remember about the Treaty of Kanagawa

• The Treaty of Kanagawa (1854) opened two Japanese ports to American ships, ending more than 200 years of Japanese isolation from the West.

• Commodore Matthew Perry secured the treaty through gunboat diplomacy, using a fleet of warships in Tokyo Bay to pressure Japan into negotiating.

• In APUSH terms, Kanagawa shows Manifest Destiny extending beyond the continent, with the U.S. pursuing Asian markets once it controlled the Pacific coast.

• It supports learning objective APUSH 5.2.A by showing an effect of westward expansion, since reaching the Pacific made trade with Asia the next goal.

• Kanagawa starts a continuity thread of American economic expansion in Asia that runs through Alaska, Hawaii, and the Open Door Policy in Unit 7.

Frequently asked questions about the Treaty of Kanagawa

What was the Treaty of Kanagawa in APUSH?

It was an 1854 agreement between the U.S. and Japan, negotiated by Commodore Matthew Perry, that opened two Japanese ports to American ships and ended over two centuries of Japanese isolation. In APUSH it appears in Topic 5.2 as Manifest Destiny extending across the Pacific.

Did the Treaty of Kanagawa start full trade between the U.S. and Japan?

Not quite. Kanagawa opened two ports for supplies, refueling, and aid to shipwrecked sailors, plus a U.S. consul. Full commercial trade came with a later treaty in 1858. For APUSH, what matters is that Kanagawa was the first crack in Japan's isolation.

How is the Treaty of Kanagawa different from the Open Door Policy?

Kanagawa (1854) was a formal treaty opening Japan, signed during the Manifest Destiny era. The Open Door Policy (1899) was a set of diplomatic notes about keeping trade open in China during the imperialism era. Same goal of Asian market access, different country and almost half a century apart.

Why did Commodore Perry go to Japan?

Perry's 1853 expedition aimed to open Japan to American commerce and secure ports where U.S. ships crossing the Pacific could resupply. His warships in Tokyo Bay pressured Japan into signing the Treaty of Kanagawa the next year.

Why is the Treaty of Kanagawa in the Manifest Destiny unit?

Because it's the effect side of westward expansion (APUSH 5.2.A). Once the U.S. reached the Pacific through Oregon, the Mexican Cession, and Gold Rush California, expansionists pushed for Asian trade. Kanagawa shows Manifest Destiny's logic continuing past the coastline.