Side by side
Japan and United States compared
Two sourced records set beside each other — the figures each nation publishes, and the events each chronicle records of the other. Compared, never graded.
4 July 1776 — The Second Continental Congress adopts the Declaration of Independence
- Shared indicators
- 42
- Domains
- 9
- Crossed events
- 3
- Data through
- 2026-08-10
The figures, side by side
Each figure is the same observation, with the same source, as on the two dossiers. Every value shows the year it was observed — vintages differ by indicator and nation. A “—” is an absence in the source data, never a zero. Metric names link to the world ranking; values open the figure on its own dossier.
Economy
Society
Governance
Health
Education
Technology
Geography
Resources
Entangled histories
3 events in which either nation’s sourced chronicle names the other — including under earlier names of the same state. Each is the same record, with the same sources, as on its own chronicle; nothing here was written for this page.
- 1941 CE
Attack on Pearl Harbor
Japan attacks the U.S. fleet at Pearl Harbor, bringing the United States into World War II and opening the Pacific War.
War & Rupture · from the Japan chronicle · Meiji and Empire: Revolution from Above · Pacific War
- 7 December 1941
Attack on Pearl Harbor
Japan's surprise attack on the U.S. naval base in Hawaii brought the United States into the Second World War.
War & Rupture · from the United States chronicle · Reconstruction, industrial rise, and the World Wars · Joint Address to Congress Leading to a Declaration of War Against Japan (1941)
- 1945 CE
Atomic bombings and surrender
The United States drops atomic bombs on Hiroshima and Nagasaki on August 6 and 9; Japan announces surrender, formalized on September 2, ending World War II.
War & Rupture · from the Japan chronicle · Meiji and Empire: Revolution from Above · Atomic bombings of Hiroshima and Nagasaki, Pacific War