I’m still a relative newcomer to the area, so I relish any tidbits or artifacts that make me feel like I’m getting somewhere with my local knowledge. Calumet 412 is a Tumblr that captures Chicagoland’s architectural heritage, lesser-known historical events, and peculiarities through an eclectic mix of stunning photographs and information-rich captions. Recent posts recall the Refrigerettes, artist Archibald Motley, and analog-era aviation at Midway Airport.