Instructions: Generate a correct and concise answer for the question based on the words in the context.
Input: Context : The 2015 Belgian Grand Prix (formally the 2015 Formula 1 Shell Belgian Grand Prix) was a Formula One motor race held on 23 August 2015 at the Circuit de Spa-Francorchamps in Spa, Belgium.
Question : On what date did 2015 Belgian Grand Prix occur?
Output:
23 August 2015