Relativity, Theory of
Irwin Shapiro predicts a gravitational time delay of radiation travel as a test of general relativity
Historical biography archive · Updated 2026-11-03
Irwin Shapiro Biography and Timeline
Follow Irwin Shapiro through 2 dated historical records for United States of America.
Irwin Shapiro, historical timeline
A chronological timeline drawn from matching World History Database records.
2Distinct records
1 of 1Page
1964–1968Years on this page
1964
1968
Relativity, Theory of
Irwin Shapiro presents the first detection of the Shapiro delay
Records, sources and methodology
These dates and descriptions come from the historical_events database. Exact duplicate records have been collapsed. Names are grouped by the country, Name 2 and Name 1 fields; records with missing Name 2 cannot be reliably assigned to an individual biography. Check the underlying sources before formal citation.