Generate a correct and concise answer for the question based on the words in the context.

[Q]: Context : The 1522 Vila Franca earthquake, alternately the 1522 Vila Franca landslide (Portuguese: Subversão de Vila Franca or Terramoto de Vila Franca) refers to the great earthquake and landslides that occurred between 21--22 October 1522, in the municipality of Vila Franca do Campo (then provincial capital), on the island of São Miguel, in the Portuguese archipelago of the Azores. 
Question : The date of 1522 Vila Franca earthquake?
[A]: 22 October 1522


[Q]: Context : The Webley Revolver (also known as the Webley Top-Break Revolver or Webley Self-Extracting Revolver) was, in various marks, the standard issue service pistol for the armed forces of the United Kingdom, the British Empire, and the Commonwealth from 1887 until 1963. 
Question : Which was the official year for the approval of Webley Revolver?
[A]: 1887


[Q]: Context : The Ambushers is a novel by Donald Hamilton first published in 1963, continuing the exploits of assassin Matt Helm. 
Question : Which series is The Ambushers apart of?
[A]:
Matt Helm