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: "Sydney Metro[3] City officially opened on Monday, 19 August 2024."
International Railway Journal's own title and 19 August 2024 publish date report the City & Southwest metro "finally" opening, matching Sydney Metro's[3] own announcement and the pin's stored date, though the page itself could not be verified directly.
Sydney Metro's own document, titled "Sydney Metro: City & Southwest is now open" and dated 19 August 2024, is the operator's primary announcement matching the pin's stored date exactly, though its PDF content could not be extracted directly.
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.