Asphalt -

As cars replaced horses, the demand for smooth, durable roads skyrocketed.

For thousands of years, asphalt was a "miracle" substance found naturally in places like and the Dead Sea . asphalt

: Later builders realized that adding hot tar to these stones reduced dust and wear, creating "tarmacadam" (tarmac). As cars replaced horses, the demand for smooth,

: Phoenicians and Egyptians used natural bitumen (asphalt) to waterproof their ships , ensuring the wood survived long voyages. The Industrial Revolution As cars replaced horses

: The Babylonians used it as a mortar for brick walls and as a sealant for their famed Hanging Gardens .