We have a wonderful line up coming.  Starting September 19th - October 24th, 2025

Current Topics for Fall 2025 series are:

September 19th          Open 

September 26th        Situational Awareness

October 3rd               Local history Ghost Stories

October 10th             The Life of Hummingbirds

October 17th             History of Ukraine, Part 2 (19th century to 21st century)

October 24th             A lesson in Geology -  to discuss three aspects of the geological endeavor: plate tectonics, mass extinctions, and local geology.

Plate Tectonics: The geologic theory which proposes that the Earth’s crust is divide into several “plates” that interact in various ways to produce most of our volcanoes, earthquakes, and mountains.  In addition, movement of continents brings them into different climate zones, thus driving much of organic evolution.

Mass Extinctions:   These are disastrous events driven by some climate changes, astronomical processes, and/or volcanic activities, during which large percentages of species become extinct.  There have been six major extinctions in the past 500 million years, the sixth one is ongoing.

Local Geology: The rocks underlying the Nashville-Gallatin area consist of fossiliferous Ordovician and Silurian aged limestones and shales, separated by an unconformity which was the result of a major glaciation in the southern hemisphere.