April 21

 Holidays and Observances
(Alphabetical Order)

2026 Daily Holidays that fall on April 21, include:

• Big Word Day 
• Bulldogs are Beautiful Day 
• International Hemp Day 
• Keep Off the Grass Day 
• Kindergarten Day 
• National Chocolate Covered Cashews Truffle Day 
• National Library Workers Day - April 21, 2026 (Tuesday of National Library Week)
• National Pet CBD Day 
• National Surprise Drug Test Day 
• National Tea Day 
• National Yellow Bat Day 
• Queen's Birthday - (This is her actual birthday, an official birthday is celebrated on the Second Saturday in June)
• San Jacinto Day 
• Thank You for Libraries Day 
• Tuna Rights Day 
• World Creativity and Innovation Day 

2026 Weekly Holidays that include April 21, are:

• Administrative Professional's Week - April 19-25, 2026 (Last Full Week of April)
• American Quilters Society Week - April 18-23, 2026
• Animal Cruelty / Human Violence Awareness Week - April 19-25, 2026 (Third Full Week in April)
• Bedbug Awareness Week - April 19-25, 2026 (Last Week in April)
• Big Brothers / Big Sisters Appreciation Week - April 19-25, 2026 (Last Week of April)
• Canada Book Week - April 15-21, 2026 (Third Week of April)
• Chemists Celebrate Earth Week - April 19-25, 2026 (Always includes Earth Day 4/22)
• Cleaning for a Reason Week - April 18-24
• Consumer Awareness Week - April 18-23
• Earth Week - April 19-25, 2026 (Week surrounding April 22nd - Earth Day)
• Every Kid Healthy Week - April 20-24, 2026 (Monday-Friday of Last Full Week in April)
• Fibroid Awareness Week - April 21-24, 2026
• Global Day of Action on Military Spending - April 10 - May 9, 2026
• Health Information Professionals Week - April 18-24, 2026
• International Wildlife Film Week - April 18-23, 2026
• National Coin Week - April 19-25, 2026 (Third Full Week of April)
• National Crime Victims' Rights Week - April 19-25, 2026
• National Dance Week - April 17-26, 2026
• National Green Week - February 1 - April 30, 2026 (Start First Full Week in February to April 30)
• National Infants Immunization Week - April 20-27, 2026 (Fourth Week of April)
• National Infertility Awareness Week - April 19-25, 2026 (Fourth Week of April)
• National Karaoke Week - April 16-22, 2026
• National Library Week - April 19-25, 2026
• National Lingerie Week - April 19-25, 2026 (Last Week of April)
• National Medical Laboratory Professionals Week - April 19-25, 2026
• National Money Collectors Week - April 19-25, 2026
• National Oral, Head, and Neck Cancer Awareness Week - April 16-22, 2026
• National Organ / Tissue Donor Awareness Week - April 19-25, 2026 (Last Week of April)
• National Paperboard Packaging Week - April 19-25, 2026 (Includes Earth Day April 22nd)
• National Park Week - April 18-26, 2026 (Entrance fees are waived at all National Parks on April 18, 2026)
• National Pet ID Week - April 17-23
• National Playground Safety Week - April 20-24, 2026 (Last Monday - Friday week in April)
• National Princess Week - April 19-25, 2026 (Last Full Week of April)
• National Student Leadership Week - April 19-25, 2026 (Third Week of April)
• National Toddler Immunization Week - April 20-27, 2026
• National Volunteer Week - April 19-25, 2026 (Third Full Week in April)
• National Work Zone Safety Awareness Week - April 20-24, 2026
• Police Officers Who Gave Their Lives in the Line of Duty Week - April 18-23
• Sky Awareness Week - April 19-25, 2026 (Last Full Week in April)
• Undergraduate Research Week - April 20-24, 2026 (Different Universities have slightly different dates) 
• World Laboratory Animal Liberation Week - April 19-25, 2026 (Week that surrounds April 24th each year)
• Yom HaAtzmaut - Evening of April 21, 2026, to Evening of April 22, 2026
• Yom HaZikaron - Evening of April 20, 2026, to Evening of April 21, 2026

2026 Monthly Holidays that include April 21, are:

There are too many monthly holidays to include here, so please check out our April Holidays page to see all of the holidays that are celebrated the entire month of April.

NOTE:

1. A page on each holiday will be coming soon and linked above.
2. If a date is a movable holiday, that is different every year, I'll include the year as well as the date rule above. Otherwise, the holiday falls on the same date each year.

World Festivals and Events
(Date Order)

• Festival of Ridvan - Evening of April 21 - Evening of May 2, 2026

Astrological Sign

The Astrological Sign for April 21 is Taurus.

Birth Flower of the Month

The Birth Flower(s) for the Month for April are:

• Daisy - signifies innocence, loyal love, and purity
• Sweet Pea - signify blissful pleasure, but are also used to say good-bye.

Birthstone

The Birthstone(s) for April is the diamond, a symbol of enduring love.

Famous Birthdays

• 1816 - Charlotte Bronte, English author and poet (Jayne Eyre) (d. 1955)
• 1838 - John Muir, Scottish-American naturalist and author, and Founder of the Sierra Club (d. 1914)
• 1922 - Alistair MacLean, Scottish author (Several of his books have been made into movies - The Guns of Navarone, Ice Station Zebra, and Where Eagles Dare) (d. 1987)
• 1926 - Elizabeth II, Queen of the United Kingdom of Great Britain and Norther Ireland from 1952 - Present
• 1936 - James Dobson, American evangelist, psychologist, and author who founded Focus on the Family
• 1948 - Paul Davis, American singer-songwriter (I Go Crazy) (d. 2008)
• 1951 - Tony Danza, American actor and producer (Taxi, Who's the Boss?)
• 1958 - Andie MacDowell, American actress (Green Card, Groundhog Day) 
• 1979 - James McAvoy, Scottish actor
• 1980 - Tony Romo, American football player
• 2007 - Pincess Isabella of Denmark

Famous Deaths

• 1073 - Pope Alexander II
• 1509 - Henry VII of England (b. 1457)
• 1910 - Mark Twain, (Samuel Clemens) American author (Tom Sawyer, Huckleberry Finn) (b. 1835)
• 1918 - Manfred von Richthofen, German pilot (The Red Baron) dies after his plane is shot down
• 2012 - Charles Colson, American lawyer and activist, founded Prison Fellowship (b. 1931)
• 2016 - Prince, American singer, songwriter and actor (b. 1958)

Famous Weddings and Divorces

• 2012 - Neil Diamond, singer weds music manager Katie McNeil

Quote of the Day

Mark Twain, an American author who was born in 1835, died on this day, April 21, 1910 - It sounds like he had some great advice to live by!

Healthy Diet Habit Tip of the Day 
or a Recipe of the Day

Healthy Vacation food should be your goal to ensure a healthy vacation! If you are like me, you tire easily of fast food, and plan ways to encourage healthy vacation foods for your family while traveling!  This is a healthy diet habit!

Find out tips on where to find Healthy Vacation Food from Kerry at Healthy Diet Habits! (link opens her website)

Season

April 21st falls within the Spring Season in the Northern Hemisphere.

Spring is one of the four seasons. It follows the Winter Season, and is before the Summer Season. The weather warms up from the dreary cold, rainy and snowy weather, and you can spend more time outside.

The land comes alive in Spring, with grass turning green and early flowers like daffodils, tulips and California poppy's and other wildflowers bringing beauty back into your life!

Check out our Spring Season page for information about Spring, Spring Dates, Major Spring Holidays and Observances, Major Spring Festivals, Fun Facts About Spring, Spring Food Tips, Spring Gardening, Spring Preparation, Spring Quotes, and Spring Weather Information.

Kerry has put together some great information and tips on Spring foods: 

• Spring Weight Loss Tips

If you live in the Southern Hemisphere, this day falls in the Fall Season. 

• Fall Cooking

• Fall Foods

• Fall Snacks

• Fall Weight Loss Tips

This Day in History

• 1506 - Portuguese Catholics slaughter over 1,900 suspected Jews during the three day Lisbon Massacre
• 1789 - John Adams is sworn in as the 1st U.S. Vice President
• 1836 - At the Battle of San Jacinto during the Texas Revolution, Sam Houston leads a defeat against Mexico
• 1862 - U.S. Congress establishes the U.S. Mint in Denver, CO
• 1878 - First Lady Lucy Hayes, begins egg rolling contest on the White House lawn to celebrate Easter
• 1918 - During World War I, Canadian pilot Captain Arthur Roy Brown shoots down German fighter ace Baron von Richthofen, who was known as "The Red Baron"
• 1941 - Greece surrenders to Nazi Germany
• 1952 - Secretaries Day is celebrated for the first time (now called Administrative Professionals' Day)
• 1962 - The Seattle World's Fair (Century 21 Exposition) opens. 
• 1965 - The 64-65 New York World's Fair opens for it's second and final season
• 1981 - United States furnishes $1 billion in arms to Saudi-Arabia
• 1987 - 2nd biggest one day gain in the history of the Dow Jones as it increases 664.7
• 1989  - George W. Bush & Edward W. Rose become CEO of the Texas Rangers
• 1995 - Timothy McVeigh is arrested by the FBI and charged with the Oklahoma City bombing
• 2019 - On Easter Sunday more than 250 people are kills when eight bombs explode at churches, hotels and other places in Sri Lanka 
• 2021 - Submarine KR1 Nanggala of the Indonesian Navy sinks in the Bali Sea during a military training drill, resulting in the death of all 53 on board

This Day in Music

• 1956 - Elvis Presley's, 'Heartbreak Hotel', hits #1
• 1963 - Beatles meet the Rolling Stones for the 1st time
• 1984 - Footloose hits #1 on the Album charts, and knocks 'Thriller' from the top after 37 weeks
• 1988 - Barbra Streisand records 'You'll Never Know'

Paul Davis who was born on April 21, in 1948, sang 'I Go Crazy'. He died on April 22, 2008

Please check out our Music Holidays page!

This Day in Sports

• 1898 - Bill Duggleby, a Phillies pitcher hits a grand slam on 1st at bat
• 1904 - Ty Cobb makes his pro debut for Augusta
• 1956 - Alf Dean hooks a 2,664 lb, 16' x 10' white shark using a rod & reel hooks
• 1982 - Rollie Fingers of the Milwaukee Brewers becomes the first pitcher to record 300 saves
• 1984 - Franz Weber of Austria skis downhill at a record of 209.8 kph

Word of the Day from Wiktionary

Wishing You a Great Day Today!