The Brief: The phrase, which references a popular Star Wars quote, is used in memes and social media posts every May 4th.

DEEP DIVE
May is THE meme month. Just days after It’s Gonna be May memes kicked off the month and we’re already on to the next. May the 4th be with you (and also with you) this Wednesday as May 4th marks Star Wars Day.
What started as a silly pun shared by the Star Wars fandom has become a full-fledged holiday celebrated by many around the globe.
¡BABUSHKA CAST!
— Ray Petelin (@RayPetelinWx) April 30, 2019
Today: Nat'l Adopt A Shelter Pet Day.
WED: Justin Timberlake because It's gonna be MAY
THU: Facebook friend Michele Vidnjvich Zitz
FRI: National Paranormal Day 🧟♀️
SAT: Star Wars Day
SUN: Astronaut Day
MON: Nurses Day.THANK YOU FOR ALL YOU DO!#pittsburgh pic.twitter.com/Itcnb6SCjy
What is Star Wars Day?
For decades, Star Wars stans have celebrated George Lucas’ franchise on May 4th, proclaiming the day to be a “special once-a-year celebration of the galaxy far, far away.“
Darth Vader, can I use some of your dark power to pump my bags
— Vegeta💭 (@BTC_kamehameha) April 30, 2019
Enough with the testpumps, together we can rule the galaxy. #MaytheFourth #StarWarsDay pic.twitter.com/2eftiYCvBq
Popular Star Wars Day memes often include the caption or hashtag, “May the Fourth be with You.” The date was chosen for the pun on the catchphrase “May the Force be with you”.
Several years on, this remains one of my best contributions to the meme community #MayThe4thBeWithYou #HanShotFirst pic.twitter.com/tia6x3O04j
— Daniel (@DeeMickSee) May 4, 2018
While the phrase “May the Force be with you” originated in Star Wars: Episode IV A New Hope in 1977, the first reference of “May the 4th be with You” dates back to May 4, 1979, the day Margaret Thatcher took office as Prime Minister of the United Kingdom.
The first reference to May 4th and Star Wars occurred on May 4th, 1979. Margaret Thatcher became Prime Minister of the UK that day and her party congratulated her with an ad in the newspaper The London Evening News that said, "May the Fourth Be with You, Maggie. Congratulations." pic.twitter.com/H0fvfCxHf6
— Atibal Sights (@AtibalSights) May 4, 2018
Thanks to Margaret Thatcher and her party made a day called star wars day which is on the 4th of may…may the fourth be with you.
— Andrew/SauL Sensei (@SauLGamingUK) May 3, 2014
Apparently, Thatcher’s political party placed a congratulatory advertisement in The London Evening News, saying “May the Fourth Be with You, Maggie. Congratulations.”
May The Fourth be with you! ✌️ #starwarsday #maythe4thbewithyou #starwars #meme #selfie #stormtrooper #darkside #geek #nerd #bnw https://t.co/yNUs9VAT6D pic.twitter.com/nBXd7YQRgz
— Sacha Quester-Séméon (@sachaqs) May 4, 2018
Revenge of the Fifth/Sixth
Though less popular than May the 4th, some Star Wars fans recognize the following day, May 5th, as “Revenge of the Fifth“, a play on Star Wars: Episode III – Revenge of the Sith.
Others celebrate this one day later, on May 6th, saying that “Revenge of the Sixth” is a better play on “Sith.”
Before we all celebrate May the Fourth. We need to all agree it’s Revenge of the SIxTH. pic.twitter.com/Q5qRilIzFq
— Jenifer Scout (@JENerallyawesom) April 27, 2019
How will Star Wars fans be celebrating on May 4th?
While fans share their fave Star Wars memories, cosplay, and quotes across social media every May 4th, some go the extra mile and make the trek to Toronto for the annual celebration.
#NewProfilePic pic.twitter.com/ojmJEojyGo
— Star Wars Day TO (@StarWarsDayTO) April 23, 2019
In 2011, the first Star Wars Day event took place in Toronto, Ontario, Canada and the annual gathering has since continued. Those interested can check out @StarWarsDayTO on Twitter for more deets.
For anyone unable to make the trek to Toronto, there are plenty of other opportunities to celebrate the Sith.
Many fans don their favorite Star Wars costumes…
May(berry) the 4th be with you! @laurenevemay
— Lauren Mayberry Fans (@LaurenMayberryF) May 4, 2018
Photo from Lauren's original video, screen shot and meme by us.#StarWarsDay #MayThe4thBeWithYou #MayTheFourthBeWithYou #LaurenMayberry #CHVRCHES pic.twitter.com/ZUOYIGAhD0
While others will certainly be taking advantage of the many food, drink, and shopping deals.
When in doubt, eat…
Drink…
And get tattooed?
Lastly, for those with zero interest in Star Wars, there’s always Jane Austen…
Do you know what tomorrow is?
— Drunk Austen 🍹📚 (@Drunk_Austen) April 30, 2019
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It’s May The Firth be With You. -b pic.twitter.com/XFOOzwzcWB