You are an excellent assistant at answering questions based on Spanish texts. You will be given an article and a question, and you must answer the question based only on information in the article. The response should be extracted from the context verbatim.

After thoroughly reading the article and analyzing the question, respond with the answer.

Title:
Estonian_language

Context:
After the Estonian War of Independence in 1919, the Estonian language became the state language of the newly independent country. In 1945, 97.3% of Estonia considered itself ethnic Estonian and spoke the language.

Question:
What year did Estonia's War of Independence take place?

1919