Month Long Observances
Week Long Observances
April 1st
April 2nd
April 3rd
April 4th
April 5th
April 6th
April 7th
April 8th
April 9th
April 10th
April 11th
April 12th
April 13th
April 14th
April 15th
April 16th
April 17th
April 18th
April 19th
April 20th
April 21st
April 22nd
April 23rd
April 24th
April 25th
April 26th
April 27th
April 28th
April 29th
April 30th
- April Is Autism Awareness Month
- April Is International Guitar Month
- April Is Keep America Beautiful Month
- April Is National Child Abuse Prevention Month
- April Is National Frog Month
- April Is National Garden Month
- April Is National Humor Month
- April Is National Mathematics Education Month
- April Is National Poetry Month
- April Is Stress Awareness Month
Week Long Observances
- 3rd Week - Week of the Young Child
April 1st
- April Fool's Day
- One Cent Day
April 2nd
- Hans Christian Anderson's Birthday
- International Children's Book Day
April 3rd
- Find-A-Rainbow Day
April 4th
- 1st Home Phone Installed
In 1877.
- Easter
- NATO Established
In 1949.
April 5th
- National Read a Road Map Day
April 6th
- North Pole Discovered
In 1898.
April 7th
- No Housework Day
- World Health Day
April 8th
- Ponce de Leon Day - Born in 1460. He discovered Florida and searched for the Fountain of Youth.
April 9th
- 1st Public Library Opened - In 1833, in Peterborough, NH.
April 10th
- Encourage a Young Writer Day
- National Sibling Day
April 11th
- Jackie Robinson Day - On this day in 1947, Jackie Robinson became the 1st african-american in modern major-league baseball.
- U.S. Navy Acquires its 1st Submarine -In 1900. It was a 53-foot craft designed by Irish immigrant John P. Holland.
April 12th
- Space Shuttle Columbia First Launched -Crewed by John Young and Robert Crippen - 1981
April 13th
- Thomas Jefferson's Birthday -Born in 1743.
April 14th
- Titanic Struck The Iceberg - Shortly before midnight on April 14, the ship collided with an iceberg causing the ship to sink at 2:20 AM on April 15.
April 15th
- First McDonalds Opens -By Ray Kroc in Des Plaines, IL, 1955.
- Income Tax Day
- Leonardo Da Vinci Birthday -Born in 1452.
April 16th
- National Eggs Benedict Day
- Slavery Abolished in D.C. -By Lincoln in 1862.
April 17th
- Daffy Duck's Birthday -He debuted in a Warner Brothers cartoon in 1937.
- Sherlock Hemlock's Birthday -Sesame Street character.
April 18th
- First Laundromat Opens -In Fort Worth Texas - 1934.
- Great San Francisco Earthquake -In 1906.
- Paul Revere Day -Paul Revere rides to alert patriots that The British are coming... - in 1775.
- Pet Owner's Day
April 19th
- Humorous Day
April 20th
- Cuckoo Day
- National Pineapple Upside-Down Cake Day
- Madyy's Birthday
April 21st
- Kindergarten Day -The first kindergarten was founded by Friedrich Froebel in Germany in 1837.
April 22nd
- Earth Day
- Girl Scout Leader Appreciation Day
- Take Our Daughters and Sons to Work Day - The fourth Thursday of April.
April 23rd
- Home Run Day -Hank Aaron hits his first home run in 1954.
- International Sing Out Day
- William Shakespeare's Birthday -Born in 1564.
April 24th
- Pigs-in-a-Blanket Day
April 25th
- Anzac Day -Australia, New Zealand
- National Telephone Day
April 26th
- Hug a Friend Day
- National Pretzel Day
April 27th
- Tell a Story Day
- Walter Lantz's Birthday - The creator of Woody Woodpecker.
April 28th
- Administrative Professional's Day - The fourth Wednesday of April.
- Poetry Reading Day
April 29th
- Zipper Day -Modern zipper invented by Gideon Sindback in 1917.
April 30th
- Arbor Day -Usually the last Friday of April. Celebration dates may vary from state to state.
- National Honesty Day -George Washington inaugurated as first US president in 1789.
