Progressivism

Progressivism is the support for or advocacy of social reform. As a philosophy is based on the Idea of Progress, which asserts that advancements in science, technology, economic development, and social organization are vital to the improvement of the human condition.  [see more on historical background in Wikipedia: Progresssivism]. 
 

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Progressive Movement (California)

See also Wikipedia: California Progressive Party. 

 

Progressivism (San Francisco)

see DeLeon & Latterman, PVI (Progressive Voter Index). 
 

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References

• Latterman, David. "PVI 6.0: Revised 2015 San Francisco Progressive Voter Index and changes in the San Francisco electorate." Fall Line Analytics. March 2015. 
   
• Mowry, George E. The California Progressives (Berkeley: University of California Press, 1951).