Origin of Time Zones
Howard Mansfield explains how the railroads invented time zones and their effect on the rest of the country. Measuring time was at one time determined by the position of the sun in the sky. However, with the expansion of the railroad in the 19th century, the concept of time and how we kept it changed.
Description
Howard Mansfield explains how the railroads invented time zones and their effect on the rest of the country. Measuring time was at one time determined by the position of the sun in the sky. However, with the expansion of the railroad in the 19th century, the concept of time and how we kept it changed.
Bell Ringer Assignment
- How was time first measured?
- What effect did the invention of the clock have on time?
- Explain how railroads affected the notion of time.
- Describe the impact time zones had on people and the country.
Participants
Vocabulary
- Industrialization
- Referendum