SANDWICHED IN: Game Changers: Charles Darwin. With the publication of On the Origin of the Species in 1859, Charles Darwin changed the world of science forever. Darwin’s remarkable life from his famous sea voyage on The Beagle around the Galapagos Islands to his later life when he freed himself from the internal demons that threatened to undo him, will be discussed. This is the first in a quarterly series presented by Dr. Bill Thierfelder which will explore people or events that changed the world, our nation, or the way we live our lives. Dr. Thierfelder is a docent and tour guide at the American Museum of Natural History and retired professor of Arts and Humanities. 12:10 p.m.