List of May National Days: May 1stLaw DayNational Loyalty DayNational Chocolate Parfait DaySilver Star Service Banner DayNational School Principals’ DayPurebred Dog DayLei DayExecutive Coaching DayNew Home Owners DayInternational Workers DayNational Mother Goose DayInternational Sunflower Guerrilla Garden DayCouple Appreciation DayCss Reboot DayFrequent Flyer DayGlobal Love DayInternational Doodle Dog DayKeep Kids Alive Drive 25 DayLearn To Ride A Bike DayMay DayNational Black Barber Shop Appreciation DayNational Blessing DayNational Infertility Survival DayNational Mantra DayNational Rotate Your Beer DayPhone In Sick DaySave The Rhino Day – See Also World Rhino DayTherapeutic Massage Awareness DayWorthy Wage DayMay 2ndNational Life Insurance DayNational Truffle DayBoy Band Appreciation DayBaby DayBrothers And Sisters DayInternational Harry Potter DayInternational Scurvy Awareness DayNational Fitness DayNational Play Your Ukulele DayTake A Baby To Lunch DayWorld Asthma DayWorld Tuna DayMay 3rdWorld Press Freedom DayNational San Architect DayNational Textiles DayNational Chocolate Custard DayNational Garden Meditation DayNational Lumpy Rug DayNational Paranormal DayNational Raspberry Popover DayNational Specially-Abled Pets DayNational Two Different Colored Shoes DayInternational Wild Koala DayNational Bike To School DaySun DayWordsmith DayWrite A Review DayMay 4thNational Candied Orange Peel DayNational Orange Juice DayNational Renewal DayStar Wars DayNational Weather Observers DayPetite And Proud DayFirefighters DayPassword DayBird Day45 DayInternational Respect For Chickens DayNational Kids Fitness DayNational Orange Juice DayNational Self-Employed DayWorld Give DayMay 5thNational Astronaut DayNational Cartoonists DayCinco De MayoNational Hoagie DayNational Totally Chipotle DayAfrican World Heritage DayHug A Shed And Take A Selfie DayInternational Midwives DayMuseum Lover’s DayNail DayNational Silence The Shame DayNo Pants DayPesach Sheni – JewishRevenge Of The FifthWorld Hand Hygiene DayWorld Portuguese Language DayMay 6thNational Beverage DayNational Crepe Suzette DayNational Nurses DayNo Homework DayInfidelity Hurts Awareness DayInternational No Diet DayJoseph Brackett DayNational Start Seeing Monarchs DayNational Tourist Appreciation DaySauvingnon Blanc DayMay 7thNational Barrier Awareness DayNational Packaging Design DayNational Paste-Up DayNational Roast Leg Of Lamb DayBeaufort Scale DayBladder Cancer Awareness DayInternational Dawn Chorus DayLove’s Baby Soft DayNational Cosmopolitan DayMay 8thNational Coconut Cream Pie DayNational Have A Coke DayNational Student Nurses DayNo Socks DayIris DayFree Trade DayGreat Lakes Awareness DayInternational Thalassaemia DayNational Amyloidosis DayNational Animal Disaster Preparedness DayNational Give Someone A Cupcake DayNational Report Government Contractor Fraud DayTime Of Remembrance And Reconciliation For Those Who Lost Their Lives During The Second World WarVictory In Europe DayWhite Lotus DayWorld Donkey DayWorld Ovarian Cancer DayWorld Red Cross And Red Crescent DayMay 9thNational Butterscotch Brownie DayNational Lost Sock Memorial DayNational Moscato DayEurope DayHurray For Buttons DayNational Alphabet Magnet DayNational Home Front Heroes DayNational Sleepover DayTear The Tags Off The Mattress DayMay 10thNational Lipid DayNational Shrimp DayNational Clean Up Your Room DayDonate A Days Wages To Charity DayMother Ocean DayWorld Lupus DayNational Ship Via Rail DayNational Small Business DayOccupational Safety And Health Professional DayOne Day Without ShoesTrust Your Intuition DayMay 11thNational Foam Rolling DayNational Twilight Zone DayEat What You Want DayData Innovation DayHostess Cupcake DayNational Technology DayWorld Ego Awareness DayMay 12thNational Fibromyalgia Awareness DayNational Limerick DayNational Nutty Fudge DayNational Odometer DayInternational Nurses DayInternational Chronic Fatigue Syndrome Awareness DayInternational Day Of Plant HealthInternational Myalgic Encephalomyelitis Awareness DayNational Hospital DayNational Tampon DayNational Ya Dig DayMay 13thNational Crouton DayNational Apple Pie DayNational Frog Jumping DayNational Fruit Cocktail DayFeast Of Our Lady Of FatimaInternational Hummus DayTop Gun DayLeprechaun DayChildren Of Fallen Patriots DayCough Drop DayHummus DayIeee Global Engineering DayMartin Z. Mollusk DayWorld Cocktail DayMay 14thNational Buttermilk Biscuit DayNational Dance Like A Chicken DayNational Underground America DayAction Sports DayInternational Foods DayThe Stars And Stripes Forever DayBond With Your Dog DayDo Dah DayInternational Chihuahua Appreciation DayInternational Dylan Thomas DayNational Decency DayNational Travel Insurance Claims DayOnline Romance DayWorld Topiary DayChicken Dance DayMay 15thTSV Global Awareness DayStraw Hat DayNational Chocolate Chip DayNational Nylon Stocking DayPeace Officers Memorial DayBring Flowers To Someone DayHG Awareness DayInternational Conscientious Objectors DayInternational Day Of FamiliesInternational Kangaroo Care Awareness DayInternational Mps Awareness DayNational Safety Dose DayNational Senior Fraud Awareness DayNational Tuberous Sclerosis DayRelive Your Past By Listening To The First Music You Ever Bought No Matter What It Was No Excuses DayVBF Day Of Awareness – Vascular Birthmarks Awareness DayMay 16thHonor Our LGBTQ Elders DayNational Biographer’s DayNational Coquilles Saint Jacques DayNational Love A Tree DayNational Piercing DayNational Sea Monkey DayDrawing DayInternational Day Of LightInternational Day Of Living In PeaceNational Barbeque DayNational Check Your Wipers DayNational Do Something Good For Your Neighbor DayNational Horse Rescue DayNational Mimosa DayNational Stop Nausea DayNational Wear Purple For Peace DayNickel DayRide A Unicycle DaySex Differences In Health Awareness DayMay 17thNational Cherry Cobbler DayNational Pack Rat DayNational Walnut DayWorld Information Society DayWorld Hypertension DayInternational Minecraft DayInternational Child Helpline DayInternational Day Against Homophobia, Biphobia And TransphobiaNational Graduation Tassel DayNational Mushroom Hunting DayNational Pinkfix DayPinot Grigio DayTurn Beauty Inside Out DayWorld Neurofibromatosis Awareness DayPack Rat DayMay 18thHot Wheels DayNational Cheese Souffle DayNational Hiv Vaccine Awareness DayNational No Dirty Dishes DayNational Visit Your Relatives DayInternational Museum DayI Love Reese’s DayMother Whistler DayNational Speech Pathologist DaySend An Electronic Greeting Card DayWorld Aids Vaccine DayMay 19thNational Devil’s Food Cake DayNational May Ray DayCelebrate Your Elected Officials DayNational Asian And Pacific Islander Hiv/Aids Awareness DayNational Barber Mental Health Awareness DayNational Hepatitis Testing DayNational Mechanical Dry Eye DayPlant Something DayWalk Safely To School DayWorld Family Doctor DayWorld Ibd DayMay 20thNational Be A Millionaire DayNational Pick Strawberries DayNational Quiche Lorraine DayIt’s A Wonderful World DayWeights & Measures DayWorld Bee DayCulture Freedom DayEliza Doolittle DayFlower DayInternational Clinical Trials DayInternational Red Sneakers DayNational Band Director’s DayNational High Heels DayNational Psychometrist DayNational Rescue Dog DayNational River Cleanup DayNational Streaming DayNational Women In Aerospace DayWorld Autoimmune Arthritis DayWorld Metrology DayMay 21stNational American Red Cross Founder’s DayNational Memo DayNational Strawberries And Cream DayNational Waitstaff DayRapture And Judgment Day Party DayI Need A Patch For That DayEat More Fruits And Vegetables DayInternational Tea DayNational Talk Like Yoda DaySister Maria Hummel DayWorld Day For Cultural Diversity For Dialogue And DevelopmentWorld Fish Migration DayWorld Meditation DayMay 22ndNational Buy A Musical Instrument DayNational Maritime DayNational Vanilla Pudding DayHarvey Milk DayWorld Goth DayInternational Sherlock Holmes DayInternational Day For Biological DiversityBitcoin Pizza DayCanadian Immigrants DayInternational Being You DayNational Boss Babes DayNational Craft Distillery DayNational Solitaire DayWorld Paloma DayWorld Preeclampsia DayMay 23rdNational Lucky Penny DayNational Taffy DayWorld Turtle DayInternational Day To End Obstetric FistulaNational Drinking With Chickens DayNational Medical Coder DayMay 24thNational Escargot DayNational Scavenger Hunt DayAviation Maintenance Technician DayBrother’s DayNational Tiara DayAsparagus DayDenny’s Endless Breakfast DayInternational Women’s Day For Peace And DisarmamentNational Caterers Appreciation DayNational Yucatan Shrimp DayWorld Schizophrenia DayMay 25thNational Brown-Bag It DayNational Missing Children’s DayNational Tap Dance DayNational Wine DayTowel DayGeek Pride DayGlobal Africa DayInternational Plastic Free DayInternational Skin Pigmentation DayMay Revolution DayNational Bath Bomb DayNational Sing Out DayNational Vtuber DayWorld Thyroid DayMay 26thNational Blueberry Cheesecake DayWorld Lindy Hop DayDracula DayEarring Lovers DayDon’t Fry DayNational Cherry Dessert DayNational Heat Awareness DayNational Paper Airplane DayNational Sorry Day Aka The National Day Of HealingSally Ride DayWorld Redhead DayMay 27thNational Cellophane Tape DayNational Grape Popsicle DaySunscreen DayNational Hairstylist Mental Health Awareness DayNothing To Fear DayOld-Time Player Piano DayNational Gray DayMay 28thNational Brisket DayNational Hamburger DayAmnesty International DayMenstrual Hygiene DayThe Slugs Return From Capistrano DayInternational Day Of Action On Women’s HealthWhooping Crane DayWorld Hunger DayWorld Passion Fruit Martini DayMay 29thNational Coq Au Vin DayNational Paperclip DayLearn About Composting DayBiscuit DayPut A Pillow On Your Fridge DayEnd Of The Middle Ages DayInternational Day Of United Nations PeacekeepersMount Everest DayNational 529 DayNational Alligator DayNational Hydroxyapatite DayNational Snail DaySpring Bank HolidayWorld Digestive Health DayMay 30thNational Nail Tech DayLoomis DayNational Hole In My Bucket DayJump Rope DayNational Mint Julep DayNational Water A Flower DayNational Creativity DayWorld Ms DayMay 31stNational Autonomous Vehicle DayNational Macaroon DayNational Save Your Hearing DayNational Speak In Sentences DayWorld No Tobacco DayTulsa Race MassacreNational Fisherfolks DayNational Meditation DayNational Smile DayNecrotizing Fasciitis Awareness DayWeb Designer DayWhat You Think Upon Grows DayWorld Parrot Day There are 274 May National Days to celebrate during the year’s fifth month. In the northern hemisphere, May is the second month of Spring. May is named after the Greek goddess Maia. List of May National DaysMonth Long Celebrations and Observances in MayMore National Days in May May Facts: May has 31 days.May Birthstone: EmeraldMay Colors: Dark Red, Dark Blue, and Blue.May Birth Flowers: Lily of the Valley and Common hawthorn. The full moon in May is called the Flower Moon. Historical Events in May: May 1, 1931 – Empire State Building dedicatedMay 2, 2000 – GPS made available for public useMay 3, 1979 – Margaret Thatcher elected prime minister of BritainMay 4, 1904 – Construction begins on the Panama Canal.May 5, 1904 – Cy Young pitches a perfect game.May 6, 1940 – John Steinbeck wins the Pulitzer PrizeMay 7, 1998 – Mercedes-Benz buys ChryslerMay 8, 1912 – Adolf Zukor founded Paramount PicturesMay 9, 1960 – The FDA approves the first birth-control pillMay 10, 1994 – Nelson Mandela is inauguratedMay 11, 1997 – Deep Blue defeats Garry KasparovMay 12, 1967 – Pink Floyd performs the first quadraphonic concertMay 13, 1913 – Le Grand, the world’s first four-engine airplane, is flown May 14, 1973 – First U.S. space station is launched.May 15, 1991 – Edith Cresson appointed French premier.May 16, 1986 – Top Gun was released in AmericaMay 17, 1954 – U.S. Supreme Court outlaws racial segregation in schoolsMay 18, 1980 – Eruption of Mount St. HelensMay 19, 1935 – NFL begins annual draft of college playersMay 20, 1862 – U.S. Homestead Act signedMay 21, 1927 – Lindbergh completes first solo transatlantic flightMay 22, 1972 – Richard Nixon visits MoscowMay 23, 1430 – Joan of Arc is capturedMay 24, 1626 – Peter Minuit purchases Manhattan.May 25, 1977 – Star Wars Episode IV is released in theaters.May 26, 1897 – Bram Stoker publishes DraculaMay 27, 2016 – Barack Obama visits Hiroshima Peace Memorial ParkMay 28, 585 BC – Solar Eclipse ends BattleMay 29, 1953 – Mount Everest summit reached May 30, 1922 – The Lincoln Memorial is dedicatedMay 31, 1977 – The Trans-Alaska Pipeline System is finished. Fun Food Days: National Wine Day, National Pizza Party Day, World Whisky Day, National Chocolate Chip Day, National Truffle Day, National Orange Juice Day, National Hoagie Day, National Beverage Day, International No Diet Day, National Homebrew Day Celebrities Born in May: Adele, Cam Newton, Megan Fox, Tim Mcgraw, Jamie Dornan, Wes Anderson, Dwayne Johnson, David Beckham, Donatella Versace, James Brown, Bing Crosby, Audrey Hepburn, Rory Mcilroy