Instructions: Generate a correct and concise answer for the question based on the words in the context.
Input: Context : The Tsar Tank (Russian: -), also known as the Netopyr' () which stands for Pipistrellus (a genus of bat) or Lebedenko Tank ( ), was an unusual Russian armoured vehicle developed by Nikolai Lebedenko ( ), Nikolai Zhukovsky ( ), Boris Stechkin ( ), and Alexander Mikulin ( ) from 1914 onwards.
Question : What year was Tsar Tank commissioned?
Output:
1914