Trump adds 100% tariffs on China over rare earth export controls
Stock market crashes as 100% China tariffs escalate trade war
2 civic education topics and 8 historical events across 6 years published on this date
The Limited Test Ban Treaty enters into force and turns crisis lessons into binding policy
The Limited Test Ban Treaty enters into force after ratification, turning post-crisis diplomacy into enforceable international policy. The agreement does not end the Cold War, but it shows that the superpowers can build guardrails after coming close to nuclear war. It becomes part of the institutional legacy of the Cuban Missile Crisis.