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.
The museum's own institute (oceano.org[2]) and multiple tourism/history sources date its inauguration by Prince Albert I to 29 March 1910.
The museum's own institute profile of its founder corroborates the 1910 opening and Prince Albert I's oceanographic expeditions.[1]
Wikipedia dates the museum's inauguration by Prince Albert I to 29 March 1910, after construction began in 1899.
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