Question

In 1883, who was responsible for creating the first system of time zones in the United States?

The federal government.
The railroad industry.
State governments.
Labor unions.

Answer 1

In 1883, the railroad industry was responsible for creating the first system of time zones in the United States?

Answer 2

In 1883, it was the "railroad industry" that was responsible for creating the first system of time zones in the United States, since the introduction of rail travel meant that there needed to be a set table of departure and arrival times across the US.