But just how difficult is it to you remember who won the Maglia Rosa on the previous 49 occasions to Chris Froome – who took the pink jersey on stage 19 after a dramatic solo attack on the Colle delle Finiestre.
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You have 10 minutes to name as many as you can (without the help of Wikipedia) and prove your knowledge to your friends, family and clubmates.
*Alberto Contador was stripped of his 2011 title, which has been reflected in these answers.
Let us know how many you got inside the 10 minute allowance or how fast you managed to name them all on our social media channels.