What do tires, rain boots, and basketballs have in common? They all owe their existence to a lucky accident and one inventor who refused to quit: Charles Goodyear.

In the 1830s, rubber was a disaster—melting in heat and cracking when cold. Goodyear spent years trying to fix it. Then in 1839, legend has it, he accidentally dropped a rubber-sulfur mix onto a hot stove. 

Instead of a sticky mess, he got something tough, stretchy, and weatherproof. That was the birth of vulcanized rubber. (The Roman god of fire was named Vulcan.)

Goodyear's accidental breakthrough made rubber reliable—and changed everything:

• Tires: Made cars, bikes, and planes safer and smoother.

• Footwear: Gave us waterproof boots and rain gear.

• Sports: Made balls bouncy and gear more durable.

• Industry: Created seals and gaskets for machines.

• Medicine: Enabled gloves, tubing, and airtight equipment.

Thanks to one fiery mistake, rubber became a miracle material—flexible, tough, and everywhere.