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Bureau of Land Management Oregon and Washington/Flickr
With all of the technology that we have, and for how long we’ve been around, you’d think that we’ve discovered everything there is to be discovered as far as the past goes. The truth is that, well, we haven’t. Sometimes, when we do find something, we don’t know or understand what they were used for.
Here are some cool discoveries, both explained and unexplained, that we’ve come across.
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