When someone says they're a swinger, we all pretty much know what that entails.

Very important in a party house, two bathrooms, and then in this side, it's kind of a television room, but it's also, well,

if you have part and expression, kind of a make-out room.

As a younger kid, I didn't know what my grandfather did.

I knew he had a big house and there was this giant room with all these beds at different levels

and they were fun to go in there and jump around, you know?

You know, I found them to be probably more accepting

than any people I'd ever know one before.

Was it overwhelming to be a unicorn?

Very much so.

I mean truthfully the options were endless.

I could just open my inbox of any random time and just

scroll down and pick one. You know, I mean if you're a single female in the lifestyle

people just flock to you. But for a group of Minnesota couples who experienced the 70s as a time of free love,

they believe they would take this story to their grave.

And I go down there and there's all these chairs in a circle and everybody's got a towel on their chair and I'm like that's when I put it together like

Oh, that's what a swinger is.

I'm Paul Diddy, and this is Time Council, season one, the Silver Chain.

In the early 90s, an envelope

in the early 1990s, an envelope arrived at the Minnesota Historical Society.

Inside that envelope were the contents of an abandoned safe deposit box from First Bloomington Lake National Bank.

And with the arrival of that one envelope, their collection now included newsletters

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