- 
  
  Theodore Roosevelt was born
- 
  
  Spanish-American war ends, Roosevelt returns as a war hero with the Rough Riders and was soon elected as governor of New York in 1898
- 
  
  Roosevelt was the current Vice President; once McKinley was assassinated, Roosevelt was appointed as President
- 
  
  After coal miners become furious, they walk out on strike; others later join them on June 2nd, 1902; ends on October 23rd, 1902; lasted 163 days
- 
  
  Amended Interstate Commerce Act of 1887; forced heavy fines on railroads
- 
  
  First national wildlife refugee in the United States; Roosevelt believed in conserving wildlife; Protected egrets and other birds from becoming extinct due to plume hunting
- 
  
  After an agreement between Roosevelt and John Muir came to an agreement, discussion prompted the Presidential signature on the Yosemite Recession Bill in June 1906; put under federal protection
- 
  
  After being named President following the assassination of McKinley, Roosevelt was re-elected in the 1904 election to win his first official voted term as President
- 
  
  Ensured all products were labeled correctly; signed by Roosevelt on June 23rd and went into effect on June 30th
- 
  
  Roosevelt designates Devil's Tower as the FIRST of many to come national monuments
- 
  
  Taft elected president in 1908; left office and went on safari in Africa
- 
  
  After a safari in Africa, Roosevelt returned and he decided to join the Progressive party, aka the Bull Moose Party; he was unsuccessful and lost to Wilson in the 1912 election