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How can they know how old it was? A 500 year old log jam on the face of it seems implausible.
by ZanyProgrammer 11y ago
How can they know how old it was? A 500 year old log jam on the face of it seems implausible.
- lordnacho 11y agoNo idea if they knew about this at the time, but you could take the tree ring widths and correlate them with historical records from nearby forests.