CONFIRMEDDate confidence: CONFIRMEDStated as firmHow firmly the source words the date: confirmed, scheduled, estimated, delayed or unverified.Show all CONFIRMED pins89% CONFIDENCEOverall confidence: 89%How well the pin's source and references back up its dates.Weighted average of how firmly 4 references, the source included, support the pin's start and end times; a reference counts half as much for every 180 days older than the newestShow all pins at 75% confidence or better
Network Rail[4] confirms the Prince of Wales formally opened the Forth Bridge on 4 March 1890.The Forth Bridge, a railway cantilever spanning the Firth of Forth in Scotland, was formally opened by the Prince of Wales on 4 March 1890, some months after the structure itself was finished in November 1889. Designed by John Fowler and Benjamin Baker and built by Sir William Arrol & Co., it was Britain's first major all-steel structure and the world's longest cantilever bridge span.
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