River Song:  It 's my birthday . The Doctor took me ice skating on the River Thames in 1814 . The last of the great frost fairs . He got Stevie Wonder to sing for me under London Bridge .
Rory: Stevie Wonder sang in _ 1814 _ ?
River Song: Yes , he did ! But you must never tell him .
Rory: I 've come from the Doctor too .
River Song: Yes , but at a different point in time .
Rory: Unless there 's two of them .
River Song: No , that 's a whole different birthday .