| Date | Event | Place |
|---|
| Jan 01 - Oct 31, 2021 |
LGBT History Month 2021 |
USA, Canada |
| April 2021 |
| Apr 01 - Jun 30, 2021 |
Second Quarter 2021 |
World |
| Apr 04 - May 23, 2021 |
Easter Season 2021 |
World |
| Apr 13 - May 13, 2021 |
Ramadan 2021 |
World |
| Apr 21 - May 20, 2021 |
Zodiac sign Taurus 2021 |
World |
| May 2021 |
| May 01 - 31, 2021 |
ALS Awareness Month 2021 |
USA |
| May 01 - 31, 2021 |
Asian Pacific American Heritage Month 2021 |
USA |
| May 01 - 31, 2021 |
Asthma Awareness Month 2021 |
USA |
| May 01 - 31, 2021 |
Celiac Awareness Month 2021 |
USA |
| May 01 - 31, 2021 |
Haitian Heritage Month 2021 |
USA |
| May 01 - 31, 2021 |
Jewish American Heritage Month 2021 |
USA |
| May 01 - 31, 2021 |
National Pet Month 2021 |
USA |
| May 01 - 31, 2021 |
South Asian Heritage Month 2021 |
Canada |
| May 11, 2021 |
Eat What You Want Day 2021 |
World |
| May 11 - 15, 2021 |
Ice Saints 2021 |
Europe |
| May 12, 2021 |
Chronic Fatigue Syndrome Day 2021 |
World |
| May 12, 2021 |
International Nurses Day 2021 |
World |
| May 12, 2021 |
Limerick Day 2021 |
World |
| May 12, 2021 |
National Receptionist Day 2021 |
USA |
| May 13, 2021 |
Ascension of Jesus 2021 |
World |
| May 13 - 15, 2021 |
Eid al-Fitr 2021 |
World |
| May 13, 2021 |
Frog Jumping Day 2021 |
World |
| May 13, 2021 |
Leprechaun Day 2021 |
World |
| May 13, 2021 |
National Apple Pie Day 2021 |
USA |
| May 13, 2021 |
Rotuma Day 2021 |
Rotuma |
| May 14, 2021 |
Dance Like a Chicken Day 2021 |
World |
| May 15, 2021 |
Armed Forces Day 2021 |
USA |
| May 15, 2021 |
International Day of Families 2021 |
World |
| May 15, 2021 |
National Chocolate Chip Day 2021 |
USA |
| May 15, 2021 |
Peace Officers Memorial Day 2021 |
USA |
| May 16, 2021 |
Commemoration Day of Fallen Soldiers 2021 |
Finland |
| May 16, 2021 |
Culture Freedom Day 2021 |
World |
| May 16, 2021 |
Love a Tree Day 2021 |
World |
| May 16, 2021 |
National Sea Monkey Day 2021 |
USA |
| May 16, 2021 |
Wear Purple for Peace Day 2021 |
World |
| May 17, 2021 |
International Day Against Homophobia and Transphobia 2021 |
World |
| May 17, 2021 |
Norwegian Constitution Day 2021 |
Norway |
| May 17, 2021 |
Pack Rat Day 2021 |
World |
| May 17 - 19, 2021 |
Shavuot 2021 |
World |
| May 17, 2021 |
World Information Society Day 2021 |
World |
| May 18, 2021 |
International Museum Day 2021 |
World |
| May 18, 2021 |
No Dirty Dishes Day 2021 |
World |
| May 18, 2021 |
Visit Your Relatives Day 2021 |
World |
| May 18, 2021 |
World AIDS Vaccine Day 2021 |
World |
| May 19, 2021 |
Boy's Club Day 2021 |
World |
| May 19, 2021 |
Commemoration of Atatürk, Youth and Sports Day 2021 |
Turkey |
| May 19, 2021 |
Malcolm X Day 2021 |
USA |
| May 20, 2021 |
Be a Millionaire Day 2021 |
World |
| May 20, 2021 |
Day of Remembrance in Cambodia 2021 |
Cambodia |
| May 20, 2021 |
Pick Strawberries Day 2021 |
World |
| May 20, 2021 |
World Metrology Day 2021 |
World |
| May 21, 2021 |
Afro-Colombian Day 2021 |
Colombia |
| May 21, 2021 |
National Bike to Work Day 2021 |
USA |
| May 21, 2021 |
National Defense Transportation Day 2021 |
USA |
| May 21, 2021 |
National Memo Day 2021 |
USA |
| May 21, 2021 |
National Waiters and Waitresses Day 2021 |
USA |
| May 21, 2021 |
World Day for Cultural Diversity for Dialogue and Development 2021 |
World |
| May 21 - Jun 21, 2021 |
Zodiac sign Gemini 2021 |
World |
| May 22, 2021 |
Buy a Musical Instrument Day 2021 |
World |
| May 22, 2021 |
Harvey Milk Day 2021 |
World |
| May 22, 2021 |
International Day for Biological Diversity 2021 |
World |
| May 22, 2021 |
United States National Maritime Day 2021 |
USA |
| May 23, 2021 |
International Day to End Obsteric Fistula 2021 |
World |
| May 23, 2021 |
Lucky Penny Day 2021 |
World |
| May 23, 2021 |
Pentecost 2021 |
World |
| May 23, 2021 |
World Turtle Day 2021 |
World |
| May 24, 2021 |
Aldersgate Day 2021 |
World |
| May 24, 2021 |
Bermuda Day 2021 |
Bermuda |
| May 24, 2021 |
Independence Day of Eritrea 2021 |
Eritrea |
| May 24, 2021 |
National Escargot Day 2021 |
USA |
| May 25, 2021 |
African Liberation Day 2021 |
Africa |
| May 25, 2021 |
Geek Pride Day 2021 |
World |
| May 25, 2021 |
International Missing Children's Day 2021 |
World |
| May 25, 2021 |
National Missing Children's Day 2021 |
USA |
| May 25, 2021 |
National Tap Dance Day 2021 |
USA |
| May 25, 2021 |
Towel Day 2021 |
World |
| May 26, 2021 |
National Paper Airplane Day 2021 |
USA |
| May 26, 2021 |
National Sorry Day 2021 |
Australia |
| May 26, 2021 |
Sally Ride Day 2021 |
World |
| May 27, 2021 |
Sunscreen Day 2021 |
World |
| May 28, 2021 |
Amnesty International Day 2021 |
World |
| May 28, 2021 |
Youm-e-Takbir 2021 |
Pakistan |
| May 29, 2021 |
Castleton Garland Day 2021 |
Castleton |
| May 29, 2021 |
International Day of United Nations Peacekeepers 2021 |
World |
| May 29, 2021 |
Learn About Composting Day 2021 |
World |
| May 30, 2021 |
Trinity Sunday 2021 |
World |
| May 30, 2021 |
Water a Flower Day 2021 |
World |
| May 31, 2021 |
Memorial Day 2021 |
USA |
| May 31, 2021 |
National Macaroon Day 2021 |
USA |
| May 31, 2021 |
Save Your Hearing Day 2021 |
World |
| May 31, 2021 |
World No Tobacco Day 2021 |
World |
| June 2021 |
| Jun 01 - 30, 2021 |
Caribbean American Heritage Month 2021 |
USA |
| Jun 01, 2021 |
Dare Day 2021 |
World |
| Jun 01, 2021 |
Disneyland Day 2021 |
Welt |
| Jun 01, 2021 |
Flip a Coin Day 2021 |
World |
| Jun 01, 2021 |
Global Day of Parents 2021 |
World |
| Jun 01, 2021 |
International Children's Day 2021 |
World |
| Jun 01 - 30, 2021 |
LGBT Pride Month 2021 |
USA |
| Jun 01, 2021 |
Madaraka Day 2021 |
Kenya |
| Jun 02, 2021 |
International Sex Workers' Day 2021 |
World |
