The first entry is always the pin's source. Overall confidence is a weighted average of how firmly each reference supports the start and end times used above; a reference counts half as much for every 180 days older than the newest.
Happened as dated, per the source: "In March 2024 a bridge... The Francis Scott Key Bridge in the US city of Baltimore had collapsed into the Patapsco River after being struck by a cargo ship."
Wikipedia corroborates the NTSB[3] account, stating "On March 26, 2024... collapsed" after the vessel Dali struck the bridge, matching the pin's stored date exactly.
The NTSB's own investigation page states the collapse occurred "on March 26, 2024, at approximately 1:29 a.m." after the container ship Dali struck a pier, matching the pin's stored date exactly as the definitive US federal investigative source.
Something missing or wrong? Say it in your own words: a link that backs this pin up, a different start or end date and why, or a fact it lacks or gets wrong. The AI checks it against this pin's sources, searches for better ones, and adds any page that backs you up. The pin's own sources still count most. A picture that shows something else, or shows it badly, is looked at too, and moved down or replaced.