Question: When was the composer of Asyla born?

Context paragraphs:
Asyla: Asyla, Op.  17, is an orchestral composition by the British composer Thomas Adès.  It was finished in 1997 and has been performed widely, especially by the British conductor Simon Rattle.  It has been described as a symphony, the third movement being its unacknowledged scherzo.

Thomas Adès: Thomas Adès (born 1 March 1971) is a British composer, pianist and conductor.

Supporting paragraphs: Asyla Thomas Adès
Answer: 1 March 1971