1964

July

 * 13 - Maria Jackson broke free of the Trickster's Graske servant and arrived on this date. A few minutes after, 13 year old Sarah Jane Smith's best friend Andrea Yates fell off a pier and drowned. (SJA: Whatever Happened to Sarah Jane?)
 * 22 - Melanie Bush was born. (DWU: He Jests at Scars...)

November

 * 15 - According to her passport, this was the birthdate of Perpugilliam "Peri" Brown. (DW: Planet of Fire)

Unknown dates

 * Foxgrove was destroyed to make way for a new motorway. (SJA: The Temptation of Sarah Jane Smith)
 * The Fourth Doctor visited St. Cedd's College at Cambridge. (DW: Shada)

Andrea Yates' World

 * 13 July - In a timeline created by the Trickster, Sarah drowned and Andrea lived. This was undone by Andrea in 2008, once she realised the scale of what she had done. (SJA: Whatever Happened to Sarah Jane?)

January

 * 04 - "The Escape" (DW: The Daleks Episode 3) was first broadcast.
 * 11 - "The Ambush" (DW: The Daleks Episode 4) was first broadcast.
 * 18 - "The Expedition" (DW: The Daleks Episode 5) was first broadcast.
 * 25 - "The Ordeal" (DW: The Daleks Episode 6) was first broadcast.

Early 1964

 * Moris Farhi submited a six-episode script entitled Farewell Great Macedon and a single-episode script entitled The Fragile Yellow Arc of Fragrance. Neither were produced, but both are eventually published in 2009.

February

 * A recording of the Doctor Who theme by the BBC Radiophonic Workshop was released on a 45 rpm single. Likely the earliest release of any soundtrack music from the series.
 * Another recording of the Doctor Who theme, this time by Eric Winstone and his Orchestra, was also released on Pye Records, and was possibly the first non-BBC recording of the theme to be issued.
 * 01 - "The Rescue" (DW: The Daleks Episode 7; not to be confused with a later serial of the same name) was first broadcast.
 * 08 - "The Edge of Destruction" (DW: The Edge of Destruction Episode 1) was first broadcast.
 * 15 - "The Brink of Disaster" (DW: The Edge of Destruction Episode 2) was first broadcast.
 * Radio Times prints its first-ever Doctor Who-related cover (dated February 22-28) to promote the first episode of DW: Marco Polo.
 * 16 - Christopher Eccleston (the Ninth Doctor) was born in Salford, Lancashire, England. He was the first actor to play the Doctor born after the series debuted on television.
 * 22 - "The Roof of the World" (DW: Marco Polo Episode 1) was first broadcast.
 * 29 - "The Singing Sands" (DW: Marco Polo Episode 2) was first broadcast.

March

 * 07 - "Five Hundred Eyes"(DW: Marco Polo Episode 3) was first broadcast.
 * 14 - "The Wall of Lies" (DW: Marco Polo Episode 4) was first broadcast.
 * 21 - "Rider From Shang-Tu" (DW: Marco Polo Episode 5) was first broadcast.
 * 28 - "Mighty Kublai Khan" (DW: Marco Polo Episode 6) was first broadcast.

April

 * 01 - Marcus Hutton was born.
 * 04 - "Assassin at Peking" (DW: Marco Polo Episode 7) was first broadcast.
 * 11 - "The Sea of Death" (DW: The Keys of Marinus Episode 1) was first broadcast.
 * 18 - "The Velvet Web" First Broadcast (DW: The Keys of Marinus Episode 2) was first broadcast.
 * 20 - BBC Two, the United Kingdom's third TV network, was launched. Henceforth the main BBC network, which aired Doctor Who, would be known as BBC One.
 * 25 - "The Screaming Jungle" (DW: The Keys of Marinus Episode 3) was first broadcast.

May

 * 02 - "The Snows of Terror" (DW: The Keys of Marinus Episode 4) was first broadcast.
 * 09 - "Sentence of Death" (DW: The Keys of Marinus Episode 5) was first broadcast.
 * 16 - "The Keys of Marinus" First Broadcast (DW: The Keys of Marinus Episode 6) was first broadcast.
 * 23 - "The Temple of Evil" (DW: The Aztecs Episode 1) was first broadcast.
 * 30 - "The Warriors of Death" (DW: The Aztecs Episode 2) was first broadcast.

June

 * 06 - "The Bride of Sacrifice" (DW: The Aztecs Episode 3) was first broadcast.
 * 13 - "The Day of Darkness" (DW: The Aztecs Episode 4) was first broadcast.
 * 20 - "Strangers in Space" (DW: The Sensorites Episode 1) was first broadcast.
 * 22 - Paterson Joseph was born.
 * 27 - "The Unwilling Warriors" (DW: The Sensorites Episode 2) was first broadcast.
 * 30 - The Dalek Book was first published, possibly the first book tie-in with Doctor Who featuring original material.

July

 * 11 - "Hidden Danger" (DW: The Sensorites Episode 3) was first broadcast.
 * 18 - "A Race Against Death" (DW: The Sensorites Episode 4) was first broadcast.
 * 22 - Bonnie Langford, who would play Melanie Bush, was born in Hampton Court, Surrey, England. She was the first companion actor to be born after the start of the original series.
 * 25 - "Kidnap" (DW: The Sensorites Episode 5) was first broadcast.

August

 * 01 - "A Desperate Venture" (DW: The Sensorites Episode 6) was first broadcast.
 * 08 - "A Land of Fear" (DW: The Reign of Terror Episode 1) was first broadcast.
 * 15 - "Guests of Madame Guillotine" (DW: The Reign of Terror Episode 2) was first broadcast.
 * 22 - "A Change of Identity" (DW: The Reign of Terror Episode 3) was first broadcast.
 * 29 - "The Tyrant of France" (DW: The Reign of Terror Episode 4) was first broadcast.

September

 * 05 - "A Bargain of Necessity" (DW: The Reign of Terror Episode 5) was first broadcast.
 * Stephen Greenhorn, writer of DW: The Lazarus Experiment and The Doctor's Daughter, was born in West Lothian, Scotland.
 * 12 - "Prisoners of Concergerie" (DW: The Reign of Terror Episode 6) was first broadcast. The airing of this episode concluded Season 1 of Doctor Who, although only a few weeks passed before the start of Season 2.

October

 * 31 - "Planet of Giants", the first episode of Season 2 and of the story DW: Planet of Giants, was first broadcast.

November

 * 07 - "Dangerous Journey" (DW: Planet of Giants Episode 2) was first broadcast.
 * 12 - DWN: Doctor Who in an Exciting Adventure with the Daleks, a hardback novelisation by David Whitaker of DW: The Daleks and the first-ever Doctor Who tie-in novel, was published in hardcover by Frederick Muller. In 1973, it would be reprinted by Target Books as Doctor Who and the Daleks.
 * 14 - "Crisis" (DW: Planet of Giants Episode 3) was first broadcast.
 * Radio Times again featured a cover story on Doctor Who, this time announcing the much-anticipated return of the Daleks in DW: The Dalek Invasion of Earth.
 * Doctor Who comic strips debut in the 674th issue of TV Comic.
 * 21 - "World's End" (DW: The Dalek Invasion of Earth Episode 1) was first broadcast. For the first time, a Doctor Who episode featured extensive location filming and brought back a previously seen monster. It was also the first story to incorporate widely known London landmarks (despite being set in the future).
 * 28 - "The Daleks" (DW: The Dalek Invasion of Earth Episode 2) was first broadcast.

December

 * Its original 20,000-copy print run already sold out, DWN: Doctor Who in an Exciting Adventure with the Daleks went into a second printing.
 * Doctor Who entered the pop music leagues when a Newcastle girl group called The Go-Go's (no relation to the American group of the 1980s) released the single "I'm Gonna Spend My Christmas With A Dalek". Coincidentally, the Dalek story underway at this time did indeed run through Christmas.
 * 05 - "Day of Reckoning" (DW: The Dalek Invasion of Earth Episode 3) was first broadcast.
 * 12 - "The End of Tomorrow" (DW: The Dalek Invasion of Earth Episode 4) was first broadcast.
 * 19 - "The Waking Ally" (DW: The Dalek Invasion of Earth Episode 5) was first broadcast.
 * 26 - "Flashpoint" (DW: The Dalek Invasion of Earth Episode 6) was first broadcast. The episode saw the first major cast change, as Carole Ann Ford left the series.

Unknown dates

 * Doctor Who began airing on the Canadian Broadcasting Corporation network in Canada, making its North American debut.