In 1897, Boston opened the Tremont Street subway.

It was a pioneer setting the stage for the future of underground public transit.

And as crazy as it might seem, it's still in use today, making it the oldest subway tunnel in North America and the third oldest in the world, not too shabby for a dark hole in the ground.

It isn't a long tunnel system, but it helped people travel around the Boston Common, a massive public park in the middle of the city.

Grab a map sometime and find the common, and then trace your finger around the southeastern chin of the park where Boylston and Tremont intersect. That's where the tunnel passes through.

Two years before it opened to the public though, workers were digging furiously beneath that corner when they ran into something unexpected.

Skeletons, hundreds and hundreds of human skeletons, over 900 in fact, and all of them right smack in the middle of their path.

Since the 1720s, thousands of people had been buried in what would later become known as the Central Barrying Ground.

But when Boylston Street was extended past there in 1836, the city engineers ran it right over a section of graves.

It's more than ironic, really. The Barrying Ground, or at least part of it, got...barried.

After the skeletons were discovered in 1897, it will all move to a mass grave which is still nearby today.

This is what happens in old cities. When people have lived and died in one place for so long, things have a tendency to get buried and lost to time.

Bodies for sure, but also the lives those bodies represented. We end up burying our pain, our tragedy, our loss.

And all those hidden memories have a way of popping back up when we least expected.

Boston is one of those old cities. I know it's young by European standards, but it's one of the oldest in America.

In all that age comes with a rich history. One that's full of conflict, and tragedy, and pain.

Pain, some say, that can still be felt today.

I'm Aaron Manke, and this is lore.

Boston is one of those cities that probably requires no introduction.

It's central to so many of the early ideas and emotions that fueled the birth of America, and it's one of the key stages upon which that conflict was played out.

Boston was, and still is, an epicenter for the rebellious spirit.

Many of us know it as the setting for the Boston Tea Party in 1773, which wasn't really a party, by the way.

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