Historians believe the preserved 15th Century vessel is as historically significant as the Mary Rose.
Tree-ring analysis has been able to date a medieval ship found in a Welsh riverbank to about six month accuracy.
Earlier this year, the team working on the £8m project finished the conservation process of the 2,500 pieces of wood uncovered in the banks of the River Usk by workers building Newport's Riverfront Theatre.Experts believe the 30m , 400 tonne, medium-sized boat was having a refit in Newport in 1468 or 1469 following a voyage from the Iberian Peninsula to Bristol when its moorings broke.
In another breakthrough, experts now know when the ship was built using oxygen isotope dendrochronology - or the study of tree-ring data - to determine an estimated date when it was built. Research by University of Wales Trinity Saint David and Swansea University suggests the vessel was constructed soon after the oak trees were chopped down in the winter of 1457-58.This is how historians think the Newport ship may have looked as it docked in south Wales in the 15th CenturyThe research, published in the International Journal of Nautical Archaeology, also suggested the vessel had a working life of about 10 years before coming to Newport for repairs in the late 1460s.
Researchers used pioneering oxygen isotope dendrochronology to help date the timbers of the Newport ship
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