Question: What is the birthyear of the last born player to cross the Old Firm divide twice?
Related documents: [0]  [DOC] Thomas Dunbar (18 August 1868 – 28 April 1908) was a Scottish association footballer who played for Celtic and Rangers. He is one of only two players to cross the Old Firm divide twice, the other being Kenny Miller. [END] 
[1]  [DOC] Kenneth Miller (born 23 December 1979) is a Scottish professional footballer who plays as a striker for Scottish Premiership club Rangers. Miller is one of only five post-war players to have played for both Rangers and Celtic, and is only the second player to cross the divide twice, alongside Tom Dunbar. He is known as a versatile and pacy striker who is skilled with headers and can play as a supporting or centre-forward. [END] 
Answer: 
1979
1979