Forget Facebook. Few advances in technology have changed the country more than the Transcontinental Railroad, which not only opened up the western half of the country for development and trade but also prompted the use of standardized time. Learn about this massive undertaking — and its effect on the country — when Kyle Wyatt, curator of history and technology at the California State Railroad Museum, talks at 7 p.m. about "Breaching Mountains, Crossing Deserts: Building the First Transcontinental Railroad"
at the Linda Hall Library (5109 Cherry, 816-363-4600). The event is free, but e-tickets are required. Register at lindahall.org