Question

In 1873 San Francisco unveiled a new mode of transportation known as

Answer 1

In 1873, San Francisco introduced the cable car system. This mode of transportation was invented by Andrew Smith Hallidie. He was inspired to build this system as a result of a bad accident. A street carriage slid backwards, killing the horses pulling it. He was shocked and decided to do something about it by designing a different form of transportation that would prevent something like that from happening again.

Answer 2

The cable car system. Hope this helped