1. Holidays 4.24

    • Ambivalence Day
    • Bob Wills Day
    • Day for the Naming of Rocks and Planets
    • Feast of Hermes Trismegistus (patron of alchemy)
    • Genocide Remembrance Day (Armenia)
    • Independence Day (a.k.a. Easter Rising / Ireland; from UK, 1916)
    • Kapyong Day (Australia)
    • Library of Congress Day
    • Mother, Father Deaf Day
    • The Mothers (Celtic Prosperity Festival)
    • National Go Birding Day
    • National Pigs-in-a-Blanket Day
    • National Rebuilding Day
    • National Remembrance of Man’s Inhumanity To Man Day
    • Plumber’s Day
    • Spring Cat Cleaning Day
    • Sumardagurinn Fyrsti (1st Day of Summer; Iceland) [Thursday after 4/18]
    • Take Our Daughters and Sons To Work Day [4th Thursday]
    • Take Your Daughter To Work Day [4th Thursday]
    • Trojan Horse Day
    • World Day for Laboratory Animals (UN)
    • World Meningitis Day
     

  2. Holidays 4.23

    • Aragon Day (Spain)
    • Bavarian Beer Day
    • Biertag (Germany)
    • Book Day and Lover’s Day (Spain)
    • Canada Book Day (Canada)
    • Cherry Cheesecake Day
    • Denim Day
    • Empire Day (Canada) [weekday before 24th]
    • English Language Day (UN)
    • Feast of Hephaestus (Greek Blacksmith God & Brewer)
    • Festival of Saint Sarah the Egyptian (Sara Kali the Black Queen; Les Saintes-Maries-de-la-Mer, France) begins [until 25th]
    • Impossible Astronaut Day
    • Independence Day (Conch Republic)
    • International Nose Picking Day
    • International Pixel-Stained Technopeasant Day
    • International Sing Out Day
    • Linnaeus Day (Sweden)
    • Lover’s Day
    • Movie Theater Day
    • National Bulldogs Are Beautiful Day
    • National Licorice Day
    • National Picnic Day
    • National Taffy Day
    • Penny Day
    • Public School Day
    • Sigurd the Dragon Slayer’s Day
    • St. George’s Day (traditional end of Bavarian brewing season)
    • Take a Chance Day
    • Talk Like Shakespeare Day
    • Teach Your Children To Save Day
    • Vinalia Urbana (a.k.a. Vinalia Prima; Ancient Roman wine festival)
    • Vulcan’s Day (Ancient Rome)
    • World Book Day (UN)
    • Zucchini Bread Day
     

  3. Holidays 4.22

    • April Showers Day
    • Berezozol (Lela’s Holiday; Asatru/Slavic Pagan)
    • Chemists Celebrate Earth Day
    • Discovery Day (Brazil)
    • Earth Day
    • Festival of Fabulous Androgynes
    • Girl Scout Leader Day
    • International Mother Earth Day
    • National Jelly Bean Day
    • Oklahoma Day (Oklahoma)
    • Queen Isabella Day (Spain)
    • School Bus Driver’s Day
    • Yggdrasil Day (Asatru/Slavic Pagan)
     

  4. Holidays 4.21

    • Aggie Muster (Texas A&M)
    • Big Word Day
    • Birthday of Rome
    • Chocolate-Covered Cashews Day
    • Dyngus Day [Monday after Easter]
    • Easter Monday [Monday after Easter]
    • Feast of the Ramson (Wild Leek Festival; Richmond, West Virginia)
    • Festival of Sacred Groves
    • Grounation Day (Rastafarian)
    • Kartini Day (Indonesia)
    • Kindergarten Day
    • National Teach Children To Save Day
    • National Tree Planting Day (Kenya)
    • Parilia (Festival to honor the Pales, Roman God(s) of sheep/shepherds)
    • Patriots’ Day (Maine, Massachusetts, Wisconsin) [3rd Monday]
    • San Jacinto Day (Texas)
    • Sechseläuten (Six Ringing Festival; Zurich, Switzerland) [3rd Monday]
    • Tiradentes Day (Brazil)
    • World Creativity and Innovation Day
     

  5. Holidays 4.20

    • Anniversary of Something That Happened So Long Ago Everyone Has Forgotten What It Was Day
    • Chinese Language Day (UN)
    • Easter 2014
    • Eastre (Teutonic Goddess of Spring)
    • 4/20 Day
    • Go Around Humming “You Light Up My Life” Until Everybody Screams Day
    • Lima Bean Respect Day
    • Look Alike Day
    • National Baked Ham with Pineapple Day [Easter Sunday]
    • National DNA Day
    • National Goal Buddies Day
    • National Pot Smokers Day
    • National Weed Day
    • Pineapple Upside-Down Cake Day
    • Radium Day
    • Ridván begins (until May 2; Bahá’í)
    • Sechseläuten begins (Six Ringing Festival; Zurich, Switzerland) [3rd Sunday]
    • Take a Break to Rest Your Mind Day
    • Volunteer Recognition Day
    • Zipper Day
     

  6. Holidays 4.19

    • Banyan Tree Birthday Party (Maui, Hawaii)
    • Bicycle Day
    • Cerealia (Roman Festival to Ceres, Goddess of Barley & Agriculture)
    • Day of Silence (anti-bullying student protest)
    • Day of the Indian (Venezuela)
    • Dutch-American Friendship Day
    • Garlic Day
    • Holocaust Remembrance Day
    • Holy Saturday (a.k.a. Easter Eve, Black Saturday) [Saturday before Easter]
    • Horseless Carriage Day
    • Humorous Day
    • Husband Appreciation Day [3rd Saturday]
    • International Marconi Day [3rd Saturday]
    • John Parker Day
    • Landing of the 33 Patriots Day (Uruguay)
    • Lexington & Concord Day
    • Ma Zu (Goddess of the Sea’s Birthday; Taoism)
    • National Amaretto Day
    • National Hanging Out Day
    • National Health Day (Kiribati)
    • Oklahoma City Bombing Commemoration Day
    • Primrose Day (UK)
    • Record Store Day [3rd Saturday]
    • Snakes Return to Ireland Day
    • Teach Your Daughter to Volunteer Day [3rd Saturday]
     

  7. Holidays 4.18

    • Adult Autism Awareness Day
    • Animal Crackers Day
    • Good Friday [Friday before Easter]
    • Independence Day (Zimbabwe; from UK, 1980)
    • International Amateur Radio Day
    • International Day For Monuments and Sites
    • International Juggler’s Day
    • Invention Day (Japan)
    • Laundromat Day
    • Look-Alike Day
    • Make a Quilt Day
    • Newspaper Columnists’ Day
    • National Hot Cross Buns Day [Friday before Easter]
    • Paul Revere Day
    • Pet Owners Independence Day
    • Poem in Your Pocket Day
    • Real People Day
    • Sleep Apnea Awareness Day
    • Smile Big and Say Hi For No Particular Reason Day
    • Tax Freedom Day
    • Third World Day
    • World Amateur Radio Day
    • Youth Homelessness Matters Day
     

  8. Holidays 4.17

    • American Academy of Arts and Letters Charter Day
    • Bat Appreciation Day
    • Blah Blah Blah Day
    • Ellis Island Family History Day
    • Equality Day (Canada)
    • FAO Day (Iraq)
    • Feast of Random Walks
    • Ford Mustang Day
    • Holy Thursday [Thursday before Easter]
    • Independence Day (Syria; End of the French Mandate, 1946)
    • International Day of Peasants Struggle
    • Maundy Thursday [Thursday before Easter]
    • National Auctioneers Day
    • National Cheeseball Day
    • National Haiku Poetry Day
    • National High Five Day
    • Nothing Like A Dame Day
    • Poetry and the Creative Mind Day
    • Sheer Thursday [Thursday before Easter]
    • Support Teen Literature Day [Thursday of Library Week]
    • Teach Your Daughter To Volunteer Day
    • Toothbrush Appreciation Day
    • Verrazano Day (New York)
    • World Hemophilia Day
     

  9. Holidays 4.16

    • Day of Mushroom Encouragement (a.k.a. Day of the Mushroom)
    • Eggs Benedict Day
    • Emancipation Day (DC)
    • Foursquare Day
    • Jim Thorpe Day
    • Liberating the Rainbow Lost in White Light Festival
    • National Bookmoble Day
    • National CPA’s Goof-Off Day [Day after Tax Day]
    • National Healthcare Decision Day
    • National Librarian Day
    • National Stress Awareness Day
    • National Wear Your Pajamas To Work Day
    • One Day Without Shoes
    • Royalty Day
    • World Entrepreneurship Day
    • World Voice Day
     

  10. Holidays 4.15

    • Bija Mangala (Field Cultivation Festival)
    • Buck Rogers Day
    • Children with Alopecia Day
    • Education and Sharing Day
    • Fast Food Day
    • Fluff Appreciation Day
    • Fordicidia (Old Roman Festival of Fertility)
    • Good Roads Day (Illinois)
    • Income Tax Pay Day
    • Jackie Robinson Day
    • McDonald’s Day
    • National Glazed Ham Day
    • National Griper’s Day
    • National Library Workers Day
    • National That Sucks Day
    • Quantum Teleportation Day
    • Rubber Eraser Day
    • Take a Wild Guess Day
    • Tax Day
    • Tax Resistor’s Day
    • Tellus Mater (Old Roman Mother Earth Festival)
    • Tipsa Diena (Traditional start of plowing; Ancient Latvia)
    • Titanic Remembrance Day
    • World Art Day