In short
On March 31, 1854, Commodore Matthew Perry's American fleet forced Japan to sign the Treaty of Kanagawa, ending more than two centuries of deliberate isolation from the outside world. The agreement opened Japanese ports to American ships and established diplomatic relations, marking the beginning of Japan's rapid transformation into a modern nation.
How it unfolded.
The five-minute version
What actually happened.
The Convention of Kanagawa, also known as the Kanagawa Treaty or the Japan–US Treaty of Peace and Amity , was a treaty signed between the United States and the Tokugawa Shogunate on March 31, 1854. Signed under threat of force, it effectively meant the end of Japan's 220-year-old policy of national seclusion by opening the ports of Shimoda and Hakodate to American vessels. It also ensured the safety of American castaways and established the position of an American consul in Japan. The treaty precipitated the signing of similar treaties establishing diplomatic relations with other Western powers.
As it was happening
16 voices, 85831 days.
One beat at a time. Click any dot on the timeline to jump, press play for autoplay, or use the arrow keys to step.
Japan's sakoku policy begins
Tokugawa Iemitsu closes Japan to nearly all foreign contact, a policy that would last over two centuries.
Voices from this moment (1)
Japan's sakoku policy begins
Jan 1
“Tokugawa Iemitsu closes Japan to nearly all foreign…”
As it was happening
16 voices, 85831 days.
Day 0 · January 1, 1633
Japan's sakoku policy begins
Tokugawa Iemitsu closes Japan to nearly all foreign contact, a policy that would last over two centuries.
“Tokugawa Iemitsu closes Japan to nearly all foreign…”
- Japan's sakoku policy begins, Jan 1
Day 80541 · July 8, 1853
Perry's fleet arrives in Edo Bay
Commodore Matthew Perry leads four American warships (the 'Black Ships') into Japanese waters, demanding negotiations.
“Commodore Matthew Perry leads four American warships (the…”
- Perry's fleet arrives in Edo Bay, Jul 8
Day 80761 · February 13, 1854
Perry returns with reinforcements
Perry arrives with a larger squadron of eight ships, increasing pressure on the Shogunate to negotiate.
“Perry arrives with a larger squadron of eight ships,…”
- Perry returns with reinforcements, Feb 13
Day 80807 · March 31, 1854
Treaty of Kanagawa signed
The Shogunate agrees to open Shimoda and Hakodate to American vessels, ending Japan's policy of isolation.
“Japan is no longer closed to the world.”
- Official Report to US State Department, April 1854, Apr 15
“Treaty with Japan Concluded - American Squadron Under…”
- The New York Times, Apr 3
“We have chosen a temporary peace over certain destruction.”
- Synthesized from period accounts - Council memorandum to the Emperor, May 1854, May 10
“Japan Opens Its Doors - Treaty Signed at Kanagawa Signals…”
- The Times, May 15
“Traite d'Amitie entre les Etats-Unis et le Japon - Fin de…”
- Le Moniteur Universel, May 20
“This treaty brings shame upon our nation.”
- Synthesized from period accounts - Private letters and early nationalist writings, 1854, Jun 1
“Japan offnet seine Tore - Amerikanischer Flottenkommandant…”
- Illustrirte Zeitung, Jun 10
“America has succeeded where diplomacy alone could not.”
- Synthesized from period accounts - British Foreign Office dispatch, May 1854, May 25
“American Treaty with Japan Ratified - Implications for…”
- The North China Herald, Jul 22
“A great achievement has been won without the sacrifice of a…”
- The New York Times editorial, April 1854, Apr 20
“The Shogunate agrees to open Shimoda and Hakodate to…”
- Treaty of Kanagawa signed, Mar 31
Day 82388 · July 29, 1858
Harris Treaty signed
Townsend Harris negotiates a more comprehensive trade treaty, establishing full diplomatic relations and opening additional ports.
“Townsend Harris negotiates a more comprehensive trade…”
- Harris Treaty signed, Jul 29
Day 85831 · January 1, 1868
Meiji Restoration begins
The Tokugawa Shogunate collapses, partly due to the destabilization caused by forced opening to the West; Japan enters rapid modernization.
“The Tokugawa Shogunate collapses, partly due to the…”
- Meiji Restoration begins, Jan 1
Front pages.
3 outlets carried the story: The New York Times, The Times, Illustrirte Zeitung.
Media coverage
What the world was reading.
5 pieces, ranked by how much they shaped the discourse.
The New York Times
Newspaper · United States · Apr 3, 1854
"Treaty with Japan Concluded - American Squadron Under Commodore Perry Succeeds in Opening Japanese Ports"
The long-sealed empire of Japan has at last yielded to Western diplomacy and the persuasive presence of American naval force. Commodore Matthew Perry's squadron has secured a treaty that grants the United States coaling stations and trading privileges, marking the end of Japan's two centuries of self-imposed isolation.
- May 15, 1854
The Times
Newspaper · United Kingdom
"Japan Opens Its Doors - Treaty Signed at Kanagawa Signals Shift in Eastern Politics"
Synthesized from period reporting - British observers regard the American success in Japan as a watershed moment in Asian affairs. The forced opening of Japanese ports to foreign commerce represents a triumph of Western determination and raises questions about the stability of the once-insular Shogunate.
- May 20, 1854
Le Moniteur Universel
Newspaper · France
"Traite d'Amitie entre les Etats-Unis et le Japon - Fin de l'Isolement Japonais"
FR: 'Traite d'Amitie entre les Etats-Unis et le Japon' / EN: 'Treaty of Friendship between the United States and Japan'. French officials and journalists saw in this pact further proof of American ascendancy in Pacific affairs and speculated on whether France might soon negotiate similar advantages with the Shogunate.
- Jun 10, 1854
Illustrirte Zeitung
Magazine · Germany
"Japan offnet seine Tore - Amerikanischer Flottenkommandant erzwingt Handelsvertrag"
DE: 'Japan offnet seine Tore - Amerikanischer Flottenkommandant erzwingt Handelsvertrag' / EN: 'Japan Opens Its Gates - American Fleet Commander Forces Trade Treaty'. German readers learned of Commodore Perry's feat through extensive woodcut illustrations depicting the American black ships and the signing ceremony at Kanagawa, emphasizing Europe's growing influence over distant civilizations.
- Jul 22, 1854
The North China Herald
Newspaper · China
"American Treaty with Japan Ratified - Implications for Trade in East Asia Considerable"
Synthesized from period reporting - Merchants and diplomatic correspondents in Shanghai regard Perry's success as a catalyst for expanded Western commercial networks across Asia. The treaty's provisions for American coaling stations foreshadow a new era of steamship-driven commerce in the Pacific.
Captured in time.
Captured before it changed
The web as it looked, the day it happened.
Wayback Machine snapshots of the pages people actually loaded that day. Click any card to open the archive at full size.
Sources & citations.
Sources
Where this came from.
Every claim on this page traces to a public, license-clean source. We don't asterisk well.
Wikipedia
1 source- 1.Treaty of Kanagawa
en.wikipedia.org