•settlement of the great plains
• creation of standard time zones
• establishment of the first federal regulatory
agency
• introduction of new methods of business
management and finance
these developments in the late 19th century
show the importance of
(1) railroads on the development of the united
states
(2) agrarian reformers in western states
(3) the labor union movement on the nation
(4) the oil industry in increasing american power
in the world

la segunda guerra mundial comenzó el 1 de septiembre de 1939 y terminó el 2 de septiembre de 1945. ¡espero que esto ayude!

"the sepoy rebellion was the result of many, many influences and stressors on the cultures of india living under british rule. in britain, it's called the sepoy mutiny on the indian mutiny, but in india, it's called the first war of independence.

the main reason is concerned to the british paramountcy , the belief in british   dominance in india political, economic and cultural life had been introduced in india about 1820."

"they were forced to grow crops that benefited the colonizing nations instead of feeding their own people."

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explanation: