Que diferencia y similares tiene el porfiriato entre la actualidad de México ?

Durante su presidencia, Díaz y sus asesores transformaron México al construir ferrocarriles, escuelas e instalar infraestructura general. Desarrollaron los inicios de una industria petrolera y llevaron dinero extranjero a minas y fábricas.

Explanation:

it's no easy i swear it's hard

answer: the time zones used to be whatever the local authority wanted them to be. one town might have 6am whenever the sun came up and another town had 6am 10 minutes later.  

the trains had a hard time when their orders said to be at a certain point at 6am.  

6am, but who's 6am.  

the railroads got together and set the time zones more or less along the longitude lines across the country.

explanation: