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.
Hamburg Port Authority's[3] press release states the Rethebrücke, Europe's largest rail bascule bridge, went into operation on 15 December 2017.
States the rail bridge opened for rail traffic on 15 December 2017 and is the largest rail bascule bridge.[1]
Hamburg Port Authority's own press release confirms the new Rethebrücke, built to replace the 1934 Rethe lift bridge and described as Europe's largest rail bascule bridge, went into operation on 15 December 2017 - the same replacement project covered by the FD Engineering documentary.
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.