- 
  
  
- 
  
  This war the the deadliest in American history by having about 620,000 deaths.
- 
  
  This railroad was the first to cross the country in the United States.
- 
  
  Boss Tweed was the head of the New York City's democratic political machine in the 1860's and 1870's.
- 
  
  
- 
  
  This battle was when two Indian tribes defeated 200 U.S. troops when they entered the Black Hills.
- 
  
  Reconstruction was a period of debating of how the nation would rebuild the south.
- 
  
  This wa an act that prohibted any Chinesse immigrants from entering the U.S.
- 
  
  This was an act passed by Congress that established the Civil Service Comminsion.
- 
  
  The time zones were created because of the trains that crossed across the country.
- 
  
  This act passed by congress abolished Native American tribes in the United States.
- 
  
  This was an act that was passed by congress to make having a monoply illegal.
- 
  
  This battle was the last between the U.S. and the Native American tribes. About 200 Sioux and 25 soldiers were killed at this battle.
- 
  
  Offered 160 acres of land to settlers who could live on it for five years.
- 
  
  Ellis Island was an immigration station located in New York Harbor where immigrants arrived to the U.S. from other countries.
-