Danniesen wrote: The Doctor was not named a Time Lord until The War Games, should that then also mean that he did not become a Time Lord until that specific story? The Time Warrior was the first story to name the Doctor's planet Gallifrey, does that mean that until that specific story the planet had no name? No. Because knowledge changes as the show is expanding.
This is incorrect. There are, in fact, pre-The War Games sources where the Doctor is a human, and these stories remain valid.