Peter Rachleff is professor emeritus of history at Macalester College and co-founder of the East Side Freedom Library.

From "Bloody Friday" to the massacre at Flour City, we have much to learn from the conflicts of 90+ years ago.

Plus a Milepost 7 update, news from the artsy fellas beat, and exploring the warm sewage beneath town in today's Flyover news ...

Welcome to Event Horizon, your weekly roundup of the best events in Minneapolis, St. Paul, and beyond.