Iroquois Theater Fire / Edwin Hubble announced existence of other galaxies - December 30

This Day in History Class - A podcast by iHeartPodcasts and HowStuffWorks

The Iroquois Theater in Chicago burned on this day in 1903. / On this day in 1924, Edwin Hubble published his observations on the existence of other galaxies for review at an upcoming meeting of the American Astronomical Society. Learn more about your ad-choices at https://www.iheartpodcastnetwork.comSee omnystudio.com/listener for privacy information.