Monday, August 31, in Hastings, Minnesota brings a partly sunny, hot finish to the month, with a high near 90°F, a light wind turning northwest and a mostly clear night cooling to around 62°F. Today’s time capsule looks at the 1965 gift that gave Minnesota governors an official residence, the 1990 signing of Germany’s Unification Treaty and a 1920 Detroit radio broadcast that the National Association of Broadcasters marks as the first radio news program. It’s a quick local guide for planning work, errands, riverfront time and evening activities while exploring three carefully sourced August 31 stories.