England are looking to complete back-to-back RBS 6 Nations Grand Slams by beating Ireland on Saturday.
Should they do so, they will be the first team to achieve the feat since the admission of Italy in 2000.
Here, we look at some of the other key statistical points around England's bid for history.
19 - should England achieve victory, it will extend their winning streak to 19, an outright record for a tier-one Test nation.
9 - Grand Slams won in the Six Nations era, with England bidding to take the tally into double figures.
4 - teams to have won a Six Nations Grand Slam. Wales and France have three each, with England bidding to join them on that mark, while Ireland won it in 2009.
137 - points scored by England so far in this season's competition.
27 - players used in their four games.
9 - try-scorers - Ben Te'o, Elliot Daly, Ben Youngs, Jack Nowell, Dan Cole, Danny Care, Jonathan Joseph, Anthony Watson and Billy Vunipola.
5 - players to have started all nine of England's games this season and last - captain Dylan Hartley, front-row colleague Cole, George Ford and Owen Farrell at 10 and 12 and full-back Mike Brown. Five others - Joe Marler, James Haskell, Care, Youngs and Nowell - have featured at some point in all nine games.
11 - consecutive wins for England since they last lost in the Six Nations, to Ireland in March 2015 - a record for the Six Nations or its predecessors.