Question: When did the current £20 note come out?
Disambiguated questions and answers: question: When did the Series F £20 note come out?
When did the Series E (variant) £20 note come out?
When did the original Series E £20 note come out?
answer: 13 March 2007
2007
1999
22 June 1999
5 June 1991
1991
Natural Questions answer: 2007 (from the Wikipedia article "Bank of England £20 note")