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Today is: April 06

Army Day (1917)

Asexual Day, International

CMT Music Awards, Nashville (US-TN)

Caramel Popcorn Day

Care Sunday (C)(UK)

Chakri Memorial Day (TH)(1782)

Daylight Savings (AU), Ends

Daylight Savings (CL), Ends

Daylight Savings (MX), Begins

Daylight Savings (NA), Ends

Daylight Savings (NZ), Ends

Daylight Savings (WS), Ends

Drowsy Drivers Awareness Day

Mormon Day (1830)

New Beers Eve (1933)

Olivier Awards (UK)

Plan your Epitaph Day

Rama Navami (H)

Siamese Cat Day, Ntl.

Sport for the Development of Peace, Intl. Day of

Student Athlete Day, Ntl.

Tartan Day (1320)

Twinkie Day (1930)

America Saves Week

Assistant Principals Week, Ntl.

Autism Acceptance Week

Blue Forest Bloom (BE)

Blue and Green Spirit Week, Ntl.

Consider Christianity Week

Crime Victims Rights Week, Ntl.

Dietitians Week, (AU)

Dumb Week (C)(GR)

Explore Your Career Options Week

Hate Week (1984)

Laugh at Work Week

Library Week, Ntl.

Medication Safety Week

Money Smart Week, Ntl.

Navratri (H)

Parkinson's Awareness Week (UK)(1755)

Passiontide (C)(33 AD)

Pooper-Scooper Week, Intl.

Public Health Week, Ntl.

Raw Feeding Week, Intl.

Realtist Week, Ntl.

Robotics Week, Ntl.

Science Fest, Intl. (UK)

Small Business Week, Ntl.

Sustainable Seafood Week, Ntl. (AU/NZ)

TED Conference (CA-BC)

Take Your Poet to School Week

Week of the Young Child

Wildlife Week, Ntl.(US/CA)

Window Safety Week, Ntl.

9-1-1 Education Month, Ntl.

Administrative Professionals Month

Adopt a Ferret Month

Adopt a Greyhound Month, Ntl.

African-American Women's Fitness Month, Ntl

Alcohol Awareness Month

Animal, Prevention of Cruelty to Animals Month

Arab-American Heritage Month

Architecture Month, Washington (US-DC)

Astronomy Month, Global

Autism Acceptance Month, Ntl.

Barefoot, One Day Without Shoes

Barefoot, One Day Without Shoes

Beaver Awareness Month

Bereaved Spouses Awareness Month, Intl

Black Women's History Month, Intl

Cancer Control Month

Canine Fitness Month

Car Care Month, Ntl. Spring

Cesarean Awareness Month, World

Chaitra (H)

Cherry Blossom Festival, Washington (US-DC)

Chet (S)

Child Abuse Prevention Month, Ntl.

Community College Month

Community Spirit Days

Confederate Heritage Month

Counseling Awareness Month

Couple Appreciation Month

Credit Union Youth Month™, Ntl.

Customer Loyalty Month, Intl.

Deaf History Month (1988)

Decorating Month, Ntl.

Diabetes Month, Ntl. Defeat

Distracted Driving Awareness Month, Ntl.

Donate Life Month, Ntl.

Earth Echo Challenge, Intl.

Earth Month

Earth Month

Emotional Overeating Awareness Month

Fabry Awareness Month (AU/CA/US)

Facial Protection Month, Ntl.

Fair Housing Month

Financial Capability Month, Ntl.

Financial Literacy Month

Foot Health Awareness Month, Ntl.

Frog Month, Ntl.

Grange Month

Grilled Cheese Month, Ntl.

Guitar Month, Intl.

Heartworm Awareness Month, Ntl.

Holy Humor Month (C)

Humor Month, Intl.

Irritable Bowel Syndrome Awareness Month

Jazz Appreciation Month

Keep America Beautiful Month

Kite Month, Ntl.

Knuckles Down Month, Ntl

Landscape Architecture Month, World

Lawn Care Month, Ntl.

Lawn Greetings Month

Lawn and Garden Month

Letter and Card Writing Month, Ntl.

Library, School Library Month, Ntl

Licorice Month, Ntl.

Limb Loss Awareness Month, Ntl.

Lyme Disease in Dogs Prevention Month

March Madness

Mathematics and Statistics Awareness Month

Medical Cannabis (Marijuana) Education and Awareness Month

Minority Cancer Awareness Month

Minority Health Month, Ntl.

Native Plant Month, Ntl.

Nisan (J)

Occupational Therapy Month, Ntl.

Oral Health Month, Ntl. (US/CA)

Oral, Head and Neck Cancer Awareness Month, Ntl.

Parkinson's Awareness Month

Pecan Month, Ntl.

Pest Management Month, Ntl.

Pet First Aid Awareness Month, Ntl.

Pet Month, Ntl. (UK)

Pharmacists' War on Diabetes

Pickleball Month

Poetry Month

Procrastination Awareness Month

Rebuilding Month, Ntl.

Records and Information Management Month

Rosacea Month, Ntl.

STD Awareness Month, Ntl.

Safe Digging Month, Ntl.

Sarcoidosis Awareness Month

School Library Month, Ntl.

Second Chance Month, Ntl.

Sexual Assault Awareness Month

Shawwal (M)

Sikh Awareness Month

Skagit Valley Tulip Festival (US-WA)

Skagit Valley Tulip Festival (US-WA)

Soft Pretzel Month, Ntl.

Soyfoods Month, Ntl.

Sports Eye Safety Month

Sprouted Grains Month

Straw Hat Month

Stress Awareness Month, Ntl.

Supply Chain Integrity Month

TWIT Award Month, Intl.

Testicular Cancer Awareness Month

Welding Month, Ntl.

Woman, Informed Woman Month

Women's Eye Health and Safety Month

Workplace Conflict Awareness Month

Youth Sports Safety Month

LEEP Calendar

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No Image found . This Image is about the event African Year of Justice and Reparations: 2025. Click on the event name to see the event detail.

No Image found . This Image is about the event Passiontide (C)(33 AD): April 6-12. Click on the event name to see the event detail.

No Image found . This Image is about the event Losar (B) 2151: February 10 - February 27, 2025. Click on the event name to see the event detail.

No Image found . This Image is about the event Nigeria's Decade of Gas (NG): 2021-2030. Click on the event name to see the event detail.

No Image found . This Image is about the event Jewish Year 5786 (J): September 23 - September 11, 2026. Click on the event name to see the event detail.

No Image found . This Image is about the event TED Conference (CA-BC): April 7-11. Click on the event name to see the event detail.

No Image found . This Image is about the event CMT Music Awards, Nashville (US-TN): April 6 (est). Click on the event name to see the event detail.

No Image found . This Image is about the event Calendula, Year of: 2025. Click on the event name to see the event detail.

No Image found . This Image is about the event Daylight Savings (AU), Ends: April 6. Click on the event name to see the event detail.

No Image found . This Image is about the event Nanakshahi Year 556 (S): March 14, 2024- March 13, 2025. Click on the event name to see the event detail.

No Image found . This Image is about the event Year of Mission (C): July 17, 2024 - July 16, 2025. Click on the event name to see the event detail.

No Image found . This Image is about the event Caladium, Year of: 2025. Click on the event name to see the event detail.

No Image found . This Image is about the event Water for Sustainable Development, Intl. Decade: 2018 - 2028. Click on the event name to see the event detail.

No Image found . This Image is about the event Sand and Dust Storms, Intl. Decade on Combating: 2025-2034. Click on the event name to see the event detail.

No Image found . This Image is about the event Pooper-Scooper Week, Intl.: April 1-7. Click on the event name to see the event detail.

No Image found . This Image is about the event Pea, Year of the: 2025. Click on the event name to see the event detail.

No Image found . This Image is about the event Daylight Savings (NZ), Ends: April 6. Click on the event name to see the event detail.

No Image found . This Image is about the event Olivier Awards (UK): April 6. Click on the event name to see the event detail.

No Image found . This Image is about the event Autism Acceptance Week: April 1-7. Click on the event name to see the event detail.

No Image found . This Image is about the event Panchanga 2081: March 26, 2024 - March 14, 2025. Click on the event name to see the event detail.

No Image found . This Image is about the event Mocha Mousse, Pantone Color of the Year: 2025. Click on the event name to see the event detail.

No Image found . This Image is about the event Solar Cycle 25: 2025. Click on the event name to see the event detail.

No Image found . This Image is about the event Dogwood, Year of the: 2025. Click on the event name to see the event detail.

No Image found . This Image is about the event Decade of Family Farming, Intl.: 2019-2028. Click on the event name to see the event detail.

No Image found . This Image is about the event Blue Forest Bloom (BE): April 7-25. Click on the event name to see the event detail.

No Image found . This Image is about the event Navratri (H): March 30 - April 7. Click on the event name to see the event detail.

No Image found . This Image is about the event Poverty Eradication, 3rd Intl. Decade: 2018 - 2027. Click on the event name to see the event detail.

No Image found . This Image is about the event Year of Generating Income: 2025. Click on the event name to see the event detail.

No Image found . This Image is about the event Medication Safety Week: April 1-7. Click on the event name to see the event detail.

No Image found . This Image is about the event Daylight Savings (NA), Ends: April 6. Click on the event name to see the event detail.

No Image found . This Image is about the event Jewish Year 5785 (J): October 3, 2024 - September 22, 2025. Click on the event name to see the event detail.

No Image found . This Image is about the event Islamic Year 1446 (M): July 7, 2024-June 25, 2025. Click on the event name to see the event detail.

No Image found . This Image is about the event Chinese Year of the Dragon, 4722: February 10 - January 28, 2025. Click on the event name to see the event detail.

No Image found . This Image is about the event Sustainable Seafood Week, Ntl. (AU/NZ): April 7-21 (est). Click on the event name to see the event detail.

No Image found . This Image is about the event Glaciers' Preservation, International Year of: 2025. Click on the event name to see the event detail.

No Image found . This Image is about the event Explore Your Career Options Week: April 6-12. Click on the event name to see the event detail.

No Image found . This Image is about the event Asclepias, Year of: 2025. Click on the event name to see the event detail.

No Image found . This Image is about the event 2025 Color Trends: 2025. Click on the event name to see the event detail.

No Image found . This Image is about the event Water for Sustainable Development, Intl. Decade: 2018 - 2028. Click on the event name to see the event detail.

No Image found . This Image is about the event Herb of the Year, Chamomile Matricaria: 2025. Click on the event name to see the event detail.

No Image found . This Image is about the event Chinese Year of the Dragon, 4722: February 10 - January 28, 2025. Click on the event name to see the event detail.

No Image found . This Image is about the event Nutrition, Intl. Decade for Action: 2016- 2025. Click on the event name to see the event detail.

No Image found . This Image is about the event Dietitians Week, (AU): April 7-13 (est). Click on the event name to see the event detail.

No Image found . This Image is about the event Islamic Year 1447 (M): June 26, 2025 -June 16, 2026. Click on the event name to see the event detail.

No Image found . This Image is about the event Buddhist Year (B) 2151: February 10 - February 27, 2025. Click on the event name to see the event detail.

No Image found . This Image is about the event Water for Sustainable Development, Intl. Decade: 2018 - 2028. Click on the event name to see the event detail.

No Image found . This Image is about the event Earth in Time: 2020 - 2030. Click on the event name to see the event detail.

No Image found . This Image is about the event Nanakshahi Year 556 (S): March 14, 2024- March 13, 2025. Click on the event name to see the event detail.

No Image found . This Image is about the event Monstera, Year of the: 2025. Click on the event name to see the event detail.

No Image found . This Image is about the event Quantum Science and Technology, International Year of: 2025. Click on the event name to see the event detail.

No Image found . This Image is about the event Chinese Year of the Snake, 4723: January 29, 2025 - February 16, 2026. Click on the event name to see the event detail.

No Image found . This Image is about the event Daylight Savings (CL), Ends: April 6. Click on the event name to see the event detail.

No Image found . This Image is about the event Laugh at Work Week: April 1-7. Click on the event name to see the event detail.

No Image found . This Image is about the event Army Day (1917): April 6. Click on the event name to see the event detail.

No Image found . This Image is about the event Africa, 3rd Decade of Industrial Development: 2016- 2025. Click on the event name to see the event detail.

No Image found . This Image is about the event Daylight Savings (WS), Ends: April 6. Click on the event name to see the event detail.

No Image found . This Image is about the event European Year of Digital Citizenship Education: 2025. Click on the event name to see the event detail.

No Image found . This Image is about the event Nanakshahi Years (S) 556: March 14, 2024-March 13, 2025. Click on the event name to see the event detail.

No Image found . This Image is about the event Peace and Trust, International Year of: 2025. Click on the event name to see the event detail.

No Image found . This Image is about the event Losar (B) 2152: February 28, 2025 - February 18, 2026. Click on the event name to see the event detail.

No Image found . This Image is about the event International Decade on Ecosystem Restoration: 2021-2030. Click on the event name to see the event detail.

No Image found . This Image is about the event Daylight Savings (MX), Begins: April 6. Click on the event name to see the event detail.

No Image found . This Image is about the event Indigenous Languages, Intl. Decade of: 2022 -2032. Click on the event name to see the event detail.

No Image found . This Image is about the event Chakri Memorial Day (TH)(1782): April 6. Click on the event name to see the event detail.

No Image found . This Image is about the event Transformation and New Beginnings, Year of: 2025. Click on the event name to see the event detail.

No Image found . This Image is about the event Nutrition, Intl. Decade for Action: 2016- 2025. Click on the event name to see the event detail.

No Image found . This Image is about the event Third International Decade Poverty Eradication: 2018 - 2027. Click on the event name to see the event detail.

No Image found . This Image is about the event Cooperatives, Year of International: 2025. Click on the event name to see the event detail.

No Image found . This Image is about the event Library Week, Ntl.: April 6-12. Click on the event name to see the event detail.

No Image found . This Image is about the event Second UN Decade for Action on Road Safety: 2021-2030. Click on the event name to see the event detail.

No Image found . This Image is about the event Nelson Mandela Decade of Peace: 2019-2028. Click on the event name to see the event detail.

No Image found . This Image is about the event Small Business Week, Ntl.: May 4-10. Click on the event name to see the event detail.

No Image found . This Image is about the event International Decade of Healthy Ageing: 2021-2030. Click on the event name to see the event detail.

No Image found . This Image is about the event Assistant Principals Week, Ntl.: April 7-11. Click on the event name to see the event detail.

No Image found . This Image is about the event Siamese Cat Day, Ntl.: April 6. Click on the event name to see the event detail.

No Image found . This Image is about the event International Decade for Ocean Science for Sustainable Development: 2021-2030. Click on the event name to see the event detail.

No Image found . This Image is about the event Losar (B) 2151: February 10 - February 27, 2025. Click on the event name to see the event detail.

No Image found . This Image is about the event Year of Jubilee (C): December 24, 2024 - December 24, 2025. Click on the event name to see the event detail.

No Image found . This Image is about the event Africa, 3rd Decade of Industrial Development: 2016- 2025. Click on the event name to see the event detail.

No Image found . This Image is about the event Nanakshahi Year 557 (S): March 14, 2025- March 13, 2026. Click on the event name to see the event detail.

No Image found . This Image is about the event Begonia, Year of the: 2025. Click on the event name to see the event detail.

No Image found . This Image is about the event Realtist Week, Ntl.: April 6-12 (est). Click on the event name to see the event detail.

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About Pi Approximation Day

United States

EVENT NAME:

Pi Approximation Day

EVENT CATEGORIES:

Science & Math , Education
Technology & Telecom , United States

Dates Active:

Begins: Jul 22, 2023
Ends: Jul 22, 2023

INFORMATION URL:

http://www.math.com/tables/constants/pi.htm

EVENT ADDRESS:

SOCIAL MEDIA LINKS:

RESERVE TICKETS:

DESCRIPTION:

Pi Approximation Day is a play on numbers: the seventh month of the year and the twenty-second day of that month. Math enthusiasts celebrate this day as the standard approximation of pi: twenty-two divided by seven.

Pi Approximation Day began at the Chalmers University of Technology in Gothenburg, Sweden. Pi is the mathematical constant equivalent to the 3.14159 or the diameter ratio to a circle's circumference. Pi is an irrational number; thus, it cannot be a common fraction.

Since the 18th century, the Greek letter 'π' has represented pi.

VIDEOS

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SUPPORTING DOCUMENTS

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ADDITIONAL IMAGES

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EVENT CHAMPION

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LAST UPDATED:

Jun 09, 2023

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EVENT MANAGER:

LEEP

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