YYSI/TIMELINE

What happened, and when.

Event dates and observation dates are different. Every entry links to the document behind it.

1956 · HISTORICAL CONTEXT
The Dartmouth summer research project helped establish artificial intelligence as a field. Dartmouth history →
SEP 22, 2026 · UN GENERAL ASSEMBLY
Trump announces Super Intelligence terminology at the UN. Date follows the U.S. local date in the official account. White House speech account →
SEP 29, 2026 · EXECUTIVE ORDER 14434
The order directs specified executive-branch official usage to adopt SI, to the maximum extent permitted by law. Historical documents need not be altered. Read the exact scope →
OCT 13, 2026 · PRESIDENTIAL SI CHALLENGE
The White House announces the 2027 Presidential SI Challenge and a First Lady Seal of SI Readiness. Dated announcement →
OCT 16, 2026 · IMF EVENT
An IMF event retains AI in its title. This is an example of terminology outside the U.S. executive branch, not an agency compliance verdict. Event page →
OBSERVED OCT 20, 2026 · NASA TOPIC PAGE
NASA uses SI terminology and references the order on its topic page. The observation date does not establish when the page changed. NASA page →

Correction, October 20: earlier versions listed the UN speech as September 23, described AI as an 85-year-old acronym, and included unsupported claims about State Department cable timing. Those claims have been corrected or removed. Each retained entry now links to its specific source.