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:
Victoria_and_Albert_Museum

Context:
The main gallery was redesigned in 1994, the glass balustrade on the staircase and mezzanine are the work of Danny Lane, the gallery covering contemporary glass opened in 2004 and the sacred silver and stained-glass gallery in 2005. In this latter gallery stained glass is displayed alongside silverware starting in the 12th century and continuing to the present. Some of the most outstanding stained glass, dated 1243–48 comes from the Sainte-Chapelle, is displayed along with other examples in the new Medieval & Renaissance galleries. The important 13th-century glass beaker known as the Luck of Edenhall is also displayed in these galleries. Examples of British stained glass are displayed in the British Galleries. One of the most spectacular items in the collection is the chandelier by Dale Chihuly in the rotunda at the Museum's main entrance.

Question:
When was the main gallery for the V&A's contemporary glass collection opened?

2004