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This problem was completely solved in 1830 by Évariste Galois , by introducing what is now called Galois theory .
 Évariste Galois, Galois
Please list all entity words in the text that fit the category. Output format is "word1, word2". 
Option: location, person, organization 
Text: {0} 
Answer:
 Évariste Galois, Galois