The project, which saw local organisations work with the UK-based family tree company, will provide researchers and families across the world with access to local documents.
It is estimated that 210,000 pages of archival documents have been digitised over the last year.
Registers from Alderney and Sark are included in the digitisation project.
The initiative was led by the Bailiwick of Guernsey Digitisation Partnership, which is made up of representatives from the Priaulx Library, Island Archives, the Deanery of Guernsey, La Societe Guernesiaise and the Greffe.
‘This is a major achievement for our island, bringing us in line with other jurisdictions that have already digitised their records,’ said island archivist Vikki Hart.
‘By making these important documents available online, we are ensuring they remain accessible to researchers worldwide, while also preserving the originals for our future generations.’
A number of the records were church records, comprising births, marriages and burials.
Some of the earliest church registers date back to the late 1500s.
‘I am delighted that people across the world will be able to research family connections and roots in Guernsey, through the release of so many of Guernsey’s historic records,’ said Dean of Guernsey, The Very Rev. Tim Barker.
‘Understanding our family history is an important way for many of us to affirm and celebrate both the unique identity of each person and the connections we have through our family relationships.’
The local team worked closely with Findmypast to oversee the digitisation process, which was carried out in Guernsey at the Priaulx Library, Island Archives and Greffe to make sure the original records were safely preserved.
‘The records published today offer unprecedented online access to anyone looking to delve deeper into the rich history of these islands,’ said Findmypast UK archives manager Mary McKee.
‘For the first time, researchers will be able to search within millions of records and uncover the family stories of islanders over the past 400 years.
‘In particular, the Occupation records from the Second World War provide poignant insights into life during one of the most challenging periods in its modern history. We’re very proud to offer these to the public exclusively online on Findmypast.’
Following advice from Law Officers of the Crown and States data protection officials, which was informed by UK National Archives guidelines, data protection considerations have limited some records created to a set number of years ago.
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