Twelve years ago, Colorado put its own stamp on April 20, when two Columbine High School students killed twelve other students and a teacher before turning their guns on themselves. And last year on April 20? The Deepwater Horizon explosion in the Gulf of Mexico, which killed eleven workers.
States along the Gulf Coast are still mopping up British Petroleum's mess, with former Colorado senator Ken Salazar, now head of the Department of the Interior, responsible for much of the cleanup -- both of the environment, and federal oversight of drilling operations.
A dozen years later, the Columbine community is still mourning, and there will be no classes at the school today.
But down at Civic Center, quite a party is shaping up, with tens of thousands of people expected to show up and celebrate.
Happy April 20... whatever you choose to remember today.
More from our Calhoun: Wake-Up Call archive: "Best Mountain Smoke Shack winner Topher's Hut does a smoking business in April snow."