: Amy and Rory's childhood friend Mels is revealed to be their daughter, Melody Pond . After being shot by Hitler (who is promptly shoved into a cupboard), Mels regenerates for the first time on-screen, becoming the woman known as River Song .
: Brainwashed by the Silence, River poisons the Doctor with "Judas Tree" venom, which prevents regeneration. [S6E8] Let's Kill Hitler
: The Doctor gives River her iconic blue TARDIS-shaped diary , marking the beginning of their complicated, "backwards" timeline together. : Amy and Rory's childhood friend Mels is
: After seeing the Doctor’s kindness and learning about her parents' love for her, River uses all her remaining regeneration energy to bring him back to life, becoming fully human in the process. Character Revelations marking the beginning of their complicated
