Question

In 1883, __________ divided the nation into the four time zones still used today.

Answer 1

In 1883, the major railroad companies divided the nation into the for time zones still used today. 

Answer 2

Answer: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.