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:
Mexico_City

Context:
Another major addition to the city's museum scene is the Museum of Remembrance and Tolerance (Museo de la Memoria y Tolerancia), inaugurated in early 2011. The brainchild of two young Mexican women as a Holocaust museum, the idea morphed into a unique museum dedicated to showcasing all major historical events of discrimination and genocide. Permanent exhibits include those on the Holocaust and other large-scale atrocities. It also houses temporary exhibits; one on Tibet was inaugurated by the Dalai Lama in September 2011.

Question:
The exhibit inaugurated by the Dalai Lama opened when?

September 2011