In today's episode, public transit advocate, designer, and illustrator Chris Arvin shares the dramatic story of how Muni became the first public transit system in a major U.S. city.

Complaining about the bus might be San Francisco's unofficial favorite pastime, but few know about the true origins of our transit system.

You can find Chris at @chrisarvinsf on Twitter, and you can also shop their transit-themed merch at transit.supply.