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: "approved the final project for a permanent connection between Sicily and Calabria".
Webuild, the lead contractor, confirms CIPESS "approved the Definitive Design" on 6 August 2025 and that its Eurolink joint venture signed a €10.6 billion addendum with Stretto di Messina the same day, independently corroborating the pin's date from the builder's side.[1]
The Italian government's own CIPESS meeting page states the committee "approved the final project for a permanent connection between Sicily and Calabria" on 6 August 2025, an official primary source matching the pin's stored date exactly.[1]
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.