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:
Martin_Luther

Context:
On 19 October 1512, he was awarded his Doctor of Theology and, on 21 October 1512, was received into the senate of the theological faculty of the University of Wittenberg, having been called to the position of Doctor in Bible. He spent the rest of his career in this position at the University of Wittenberg.

Question:
When did Luther enter into the senate of the Theology faculty of the University of Wittenberg?

21 October 1512