Why weren't time zones created until the late 1800's?

The directory was unsuccessful and was eventually replaced because no constitution had been created that outlined its authority. it was connected with the reign of terror. its members did not get along with napoleon. the national convention did not agree with the directory's decisions.

Which economic sector employs the least number of people in mexico, barbados, and venezuela? a. agriculture b. services c. industry

Aclaim about history is most likely not valid if it has which of these characteristics?