93855
The increase in international trade at the turn of the 20th century accelerated the formation of international organizations , and , by the start of World War I in 1914 , there were approximately 450 of them .
 World War I
Please list all entity words in the text that fit the category. Output format is "word1, word2". 
Option: media, plant, vehicle, astronomical object, time, disease, animal, location, person, organization, mythical figure, food, biology, geographical phenomenon, instrument, event 
Text: {0} 
Answer:
 World War I