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:
Sony_Music_Entertainment

Context:
In 1929, ARC was founded through a merger of several smaller record companies, which, ultimately, transformed into one enterprise known as SME. In the depths of the Great Depression, the Columbia Phonograph Company (founded in 1888) in the U.S. (including its Okeh Records subsidiary) was acquired by ARC in 1934.

Question:
In what year did Columbia Phonography Company form?

1888