Ancient World

• S1 Episode 2: King Tut Wasn’t Murdered

• S1 Episode 4: A Tale of Two Cities

• S1 Episode 7: Tell Cersei It Was Locusta

• S1 Episode 8: Ritual Killings in Mesoamerica

• S2 Episode 4: Samhain

• S2 Episode 6: Cleopatra

• S2 Episode 9: Genghis Khan

1st Century

• S4, Episode 0.75: Crucifixion

14th Century

• S1 Episode 1: Rats Were Framed

• S1 Episode 6: Yeah, We Did An Entire Episode About Vampires

• S2 Episode 2: Wolves, Where?

15th Century

• S3 Episode 7: Okay, But Ask The Pope First

16th Century

• S4, Episode 6: It’s Tudor Time

17th Century

• S2 Episode 1: Raindrops on Roses and Nooses on Witches

• S2 Episode 7: The First Thanksgiving

18th Century

• S1 Episode 11: Y’all Gonna Make Me Lose My Mind

19th Century

• S1 Episode 3: The Great Hunger

• S1 Episode 5: Home Is Where The Poisons Are

• S1 Episode 9: Edgar Allan Whoa

• S1 Episode 10: It’s Alive!

• S1 Episode 12 and 14: It’s Lizzie, Bitch (Parts 1 and 2)

• S2 Episode 3: Ding Dong, This Dude’s Not Dead

• S2 Episode 8: Get Down With This Sickness

• S2 Episode 10: Helen Jewett

• S3 Episode 2: Wayne Wheeler

• S3 Episode 3: Bridget Cleary

• S3 Episode 4: Chicago Fire

• S4 Episode 0: Seance

• S4 Episode 4: True Crime Tim

• S4 Episode 1: A Brief History of Modern Embalming

20th Century:

• S2 Episode 0: Alfred Hitchcock’s Worst Nightmare

• S3 Episode 1: We’re Going Down, Down In A Sinkable Ship

• S3 Episode 6: Vladimir Lenin

• S3 Episode 8: The Not So Great Molasses Flood

• S3 Episode 9: Fire Your Coroners

• S4 Episode 2: Mariposas

• S4 Episode 3: Zombies

21st Century:

• S3 Episode 5: The Only Story Ever About The Time A Government Botched A Disaster

Unplaceable on the Timeline:

• S2 Episode 5: Dia De Los Muertos 

• S2 Episode 11: xmas.deathandfriends.x264.file.000666 (AutoRecovered)