Salem on History

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Time Line of Twentieth Century Ecology and Environment

Range:

1902 c.e. to 1994 c.e.

• 1902
  Congress Passes the Reclamation Act
• 1903
  Pelican Island Becomes the First National Wildlife Refuge
• 1903
  Roosevelt and Muir Visit Yosemite
• 1904-1905
  Gorgas Develops an Effective Method of Mosquito Control
• 1905
  Pinchot Becomes Head of the...

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