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:
Marvel_Comics

Context:
Goodman's business strategy involved having his various magazines and comic books published by a number of corporations all operating out of the same office and with the same staff. One of these shell companies through which Timely Comics was published was named Marvel Comics by at least Marvel Mystery Comics #55 (May 1944). As well, some comics' covers, such as All Surprise Comics #12 (Winter 1946–47), were labeled "A Marvel Magazine" many years before Goodman would formally adopt the name in 1961.

Question:
When were all of Goodman's comic entities officially put under the moniker of Marvel Comics?

1961