For fans wanting to get as much information on Harley’s history as possible, we are planning to do a monthly post noting some Harley History that happened within that month. We are hunting for every notable date possible, so this will likely be updated every time we find a new bit of info!

NOTE – For comic releases, we are going by the date RELEASED vs COVER DATE.

May in Harley History…

Harley Quinn timeline by date:

🗓 May 1

• Harley Quinn: The Animated Series – “Batman’s Back, Man!” (2020)

🗓 May 2

• Suicide Squad: Hell to Pay #7 (2018, Digital First)

🗓 May 4

• New Suicide Squad #20 (2016)

🗓 May 5

• Batman & Robin Adventures #18 (1997) – Ty Templeton cover
• Joker/Harley: Criminal Sanity #4 (2020)

🗓 May 6

• Convergence: Harley Quinn #2 (2015) – Harley, Ivy, and Catwoman vs. Captain Carrot!

🗓 May 7

• Harley Quinn #32 (2003)
• Free Comic Book Day 2016: Suicide Squad Special Edition #1

🗓 May 8

• Suicide Squad #20 (2013)
• Harley Quinn: The Animated Series – “All the Best Inmates Have Daddy Issues” (2020)

🗓 May 9

• Harley Quinn #8 (2001)
• Suicide Squad #9 (2012)
• Suicide Squad: Hell to Pay #8 (2018)
• Batman: White Knight #8 (2018)
• Batman: White Knight Presents: Generation Joker #1 (2023)

🗓 May 10

• Suicide Squad #17 (2017)
• Suicide Squad: Get Joker #3 (2022)

🗓 May 11

• Harley Quinn and Her Gang of Harleys #2 (2016)

🗓 May 14

• Batman Strikes #45 (2008)

🗓 May 15

• Harley Quinn: The Animated Series – “There’s No Place to Go But Down” (2020)

🗓 May 16

• Suicide Squad: Hell to Pay #9 (2018)
• Batman: The Animated Series – “The Trial” (1994)

🗓 May 18

• Harley Quinn #28 (2016)

🗓 May 20

• Harley Quinn #16 (New 52, 2015)
• Harley Quinn: The Animated Series – “Inner (Para) Demons” (2020)

🗓 May 21

• Harley Quinn #6 (2014)

🗓 May 23

• Suicide Squad #18 (2017)
• Suicide Squad: Hell to Pay #10 (2018)
• **Batman: The Animated Series – “Harlequinade” (1994)

🗓 May 24

• Batman: Beyond the White Knight #3 (2022)

🗓 May 25

• Gotham City Sirens #23 (2011)

🗓 May 26

• Gotham City Sirens #12 (2010)
• Suicide Squad #5 (2020)
• Batman: Harley & Ivy #2 (2004) – “Jungle Fever!”

🗓 May 29

• Harley Quinn: The Animated Series – “Bachelorette” (2020)
• Heroes in Crisis #9 (2019)

🗓 May 30

• Suicide Squad: Hell to Pay #11 (2018)

🗓 May 31

(Currently no entries for this day — let me know if you come across one!)

Want more Harley history? Drop your favorite May moment in the comments or tag us on Instagram @quintessentialharley!