Instructions: Generate a correct and concise answer for the question based on the words in the context.
Input: Context : The Crewe and Nantwich by-election, 2008 was a parliamentary by-election held on 22 May 2008, for the British House of Commons constituency of Crewe and Nantwich, in Cheshire, England.
Question : The point in time of Crewe and Nantwich by-election, 2008 was when?
Output:
22 May 2008