1) The document describes the commercial development of Second and Third Streets on Main Street in Moscow, Idaho from the late 1800s to 1979. 2) It details early businesses like George Weber's Harness Shop and the Commercial Block building which housed a variety of stores and offices. 3) It also discusses the Spicer Block, Creighton's department store which was one of Moscow's oldest businesses, and the changing uses of buildings over time from saloons to banks to current stores.