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.
Fondazione Henraux[8] and Quarry Magazine[7] both date the company's founding to 1821, but neither source gives a specific month or day.
Uomini di Pietra episode set at Henraux’s Monte Altissimo marble quarry, the same real-world company/site as this pin.[1]
Uomini di Pietra episode set at Henraux’s Monte Altissimo marble quarry, the same real-world company/site as this pin.[1]
Uomini di Pietra episode set at Henraux’s Monte Altissimo marble quarry, the same real-world company/site as this pin.[1]
Uomini di Pietra episode set at Henraux’s Monte Altissimo marble quarry, the same real-world company/site as this pin.[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.
