Railroads, but notably the corruption within the transportation industry.
Necessity is the mother of invention. You must know you have a need, a driving force. There are time when advancements are made by mistakes but those are few and far between.
Time zones are a man-made invention and tool. Mother nature only knows daylight or darkness.
They say that necessity is the mother of invention. They had a need and over time improved on their response to that need until they had large functional ships.
The invention of the telegraph in the 19th century made it necessary for different places to have the same time. As communication between distant locations became instantaneous, it highlighted the confusion caused by varying local time zones. This led to the establishment of standardized time zones, culminating in the introduction of Greenwich Mean Time (GMT) in 1884, which allowed for synchronized timekeeping across regions.
Divided the United States into time zones
If you mean time zones. There is one. Russia has 7 time zones.
there are 24 time zones
The Uttermost Co. Time Zones clock can handle up to eight time zones concurrently.
40 time zones in the world.
there is 24 standard time zones!
There are 24 time zones.
Time Zones?