Polar bear at Como Zoo

Polar bear at Como Zoo

Polar bear at Como Zoo, 1937.

Polar bears Buzz and Neil

Polar bears Buzz and Neil in their habitat at Como Zoo, ca. 2010. Used with the permission of Como Zoo.

Polar bears Buzz and Neil in their habitat at Como Zoo

Polar bears Buzz and Neil in their habitat at Como Zoo

Polar bears Buzz and Neil in their habitat at Como Zoo, ca, 2010. Used with the permission of Como Zoo.

Hardy souls participating in the annual polar plunge event, International Eelpout Festival, ca. 2010s. Photo by Josh Stokes.

Polar plunge at the International Eelpout Festival

Hardy souls participating in the annual polar plunge event, International Eelpout Festival, ca. 2010s. Photo by Josh Stokes.

Polaris 500 Indy Classic snowmobile at Jay Cooke State Park, Minnesota. Photograph by Flickr user Tony Webster. CC BY 2.0.

Polaris 500 Indy Classic

Polaris 500 Indy Classic snowmobile at Jay Cooke State Park, Minnesota. Photograph by Flickr user Tony Webster. CC BY 2.0.

One of the earliest known Polaris newspaper advertisements. Bemidji Pioneer, February 2, 1957.

Polaris newspaper advertisement

One of the earliest known Polaris newspaper advertisements. Bemidji Pioneer, February 2, 1957.

Polaris RMK series snowmobile. Introduced in 1996, the RMK series of snowmobiles Polaris’s entry into the deep snow mountain sled market. Photograph taken in Island Park, Idaho, by Flickr user MotoWebMistress. CC BY 2.0.

Polaris RMK Series

Polaris RMK series snowmobile. Introduced in 1996, the RMK series of snowmobiles Polaris’s entry into the deep snow mountain sled market. Photograph taken in Island Park, Idaho, by Flickr user MotoWebMistress. CC BY 2.0.

Black and white photograph of police and strikers, 1934.

Police and strikers

Police and strikers, 1934.

Police carrying out a raid on slot machines

Police carry out a raid on slot machines, St. Paul, 1935. Photograph by the St. Paul Daily News.

Black and white photograph of police destroying an illegal alcohol still during Prohibition, 1925. Photographed by the St. Paul Daily News.

Police destroying an illegal still

Police destroy an illegal alcohol still during Prohibition, 1925. Photographed by the St. Paul Daily News.

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