Explain nationalism and how it impacted wwi.

Nationalism is the excessive patriotism and devotion to the interest of a particular nation or state, believing that nations will benefit better by acting independently instead of collectively and making more emphasis in national interests than getting international goals.

Nationalism was prevalent in the early 20th century and a significant cause of WWI, since most of the Europeans citizens believed in the supremacy of their nations, so nationalists and militarists assured to the citizens that if war came upon them their nation would emerge victorious. In general nationalism and militarism contributed to a continental delusion, suggesting a European war was necessary to assure the supremacy of the countries.

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:

this is a good question! i'll do some research and come back when i have the answer!