List of Important days in May 2021 with theme

List of Important days in May

May was named after Maia, an earth goddess of growing plants. Maia (in Greek mythology) was daughter of Atlas and mother of Hermes. The month is known for love and success. It is not only the name of the month, but some parents give their girls May as a first or middle name especially if they are born in that month and you can see below the list of important days in May 2021 with themes.

Why is May special?

There are plenty of reasons to love May. It’s the start of summer, flowers are blooming, and you can finally begin entertaining outdoors again.

How many national holidays are there in May?

At National Today we love celebrating 191 May holidays.

Is May 1st a religious holiday?

Orthodox Holy Saturday – May 1

Is May 26th a special day?

National Paper Airplane Day. National Senior Health & Fitness DayMay 26, 2021 (Last Wednesday in May) Sally Ride Day. World Dracula Day.

List of Important days in May 2021and DATES & THEMES

Here, we are providing a complete list of Important national and international days in May celebrated in 2021 with their themes. You can see the list of special days in May.   

?1 May – International Labour Day or May Day or International Workers’ Day

Theme for 2021 – “Maintaining safety and security at the workplace”

Why International Labour Day celebrated ?

This day is celebrates labourers and encourages them to be aware of their rights. The day has its origins in the labour union movement, specifically the eight-hour day movement. Popularly known as May Day, the day is observed in countries such as India, Cuba and China among other countries.

?1 May – Maharashtra Day

Why Maharashtra Day celebrated?

Maharashtra Day is celebrated on May 1 every year. This Day, commonly known as Maharashtra Din is a state holiday in the Indian state of Maharashtra, commemorating the formation of the state of Maharashtra from the division of the Bombay State on 1 May 1960.

? 2 May – World Laughter Day(First Sunday of May) 

Theme in 2021 – “Laughter is good for your health”

Why World Laughter Day celebrated?

This Day is celebrated to raise awareness about laughter and its many healing benefits. In 2021, the day falls on 02 May 2021.

World Laughter Day

Facts   World Laughter Day was first celebrated on May 10, 1998, in Mumbai upon the initiation of Dr Madan Kataria, founder of the worldwide Laughter Yoga movement.

? 2 May – World Tuna Day

Theme for 2021 –  “The Global Tuna Industry: Trailblazing through Tough Times”

World Tuna Day

Why World Tuna Day celebrated?

This day is celebrated to create awareness about Tuna fish and its importance to humans and earth and this day also promotes more sustainable fishing practices.

Facts – In 2016, the General Assembly of the UN announced to celebrate May 2nd as World Tuna Day in order to spread awareness about the importance of conserving Tuna fish.

? 3 May – World Press Freedom Day

Theme for 2021 : ” Information As A Public Good

World Press Freedom Day

Why World Press Freedom Day celebrated?

This day is celebrated to spread awareness about the importance of Freedom of the Press in functioning, information providing, its significance and to awaken the government of its duty to uphold and respect the right to freedom of expression.

Facts – The UN General Assembly proclaimed World Press Day in December 1993. Since then, May 3, the anniversary of the Declaration of Windhoek has been celebrated worldwide as World Press Freedom Day.

? 4 May – Coal Miners Day

Why Coal Miners Day celebrated?

This day is celebrated as an appreciation for the workers who sacrificed their lives, honour their accomplishments, and remember the tragedies that these hardworking individuals experience.

Facts – Coal miners played a significant role in the Industrial Revolution (between 1760 and 1840). During that period, coal was burnt on a large scale to fuel stationary, locomotive engines, and heat buildings. In the late 19th-century, coal miners in many countries were involved in industrial disputes with both the management and the government.

? 4 May – International Firefighters’ Day

Why International Firefighters’ Day celebrated?

The day is celebrated to honour the work and sacrifice made by firefighting experts. 


  • The International Firefighters’ Day was established following a tragic incident that took place in Australia’s Linton Town. The sad incident happened on 2 December, 1998, where five firemen were killed while trying to douse a wildfire.
  • The five firefighters were identified as; Garry Vredeveldt, Chris Evans, Stuart Davidson, Jason Thomas, and Matthew Armstrong. They were part of a strike team and were rushed in to attend an SOS call.
? 5 May – World Portuguese Language Day

Theme for 2021 – “Fostering multilingualism for inclusion in education and society” i.e. “Promoting multilingualism for education and inclusion in society

Why World Portuguese Language Day celebrated?

This day is dedicated to celebrated the Portuguese language-speaking community to celebrate this language, multilingualism, and cultural diversity every year. On this day, you can organize or conduct various events, shows, concerts, etc., regarding the language.

? 05 May – World Hand Hygiene Day

Theme for 2021 : ” Seconds Save Lives: Clean Your Hands

World Hand Hygiene Day

Why World Hand Hygiene Day celebrated?

The day is celebrated to maintain global promotion, visibility and sustainability of hand hygiene in health care and to ‘bring people together’ in support of hand hygiene improvement around the world.

Facts – The Day Is Organised By The World Health Organization (WHO). The point of care is about three elements that are the patient, the health care worker, and care or treatment involving contact with the patient or their surroundings. The WHO said that there should be an effective way of preventing the spread of microorganisms and virus. The prevention could be done by washing hands properly in the most effective way.

? 05 May – International Day Of The Midwife

Theme for 2021 : ” Follow The Data : Invest In Midwives “

Why International Day Of The Midwife celebrated?

This day is celebrated to recognise the work of midwives and raise awareness about the status of midwives for the essential care they provide to mothers and their newborns.

Important points for all competitive exams

  • International Confederation of Midwives President: Franka Cadee;
  • International Confederation of Midwives Headquarters: Hague, Netherlands.

Facts – Midwives’ Day was first celebrated May 5, 1991, and has been observed in more than 50 nations around the world.

? 6 May – International No Diet Day
International No Diet Day

Why International No Diet Day celebrated?

This day is celebrated to promoting a healthy lifestyle with a focus on health at any size and in raising awareness of the potential dangers of dieting and the unlikelihood of success and its symbol is a light blue ribbon.

Facts The first International No Diet Day was celebrated in the UK in 1992. Feminist groups in other countries around the globe have started to celebrate International No Diet Day, especially in the United States, Canada, Australia, New Zealand, India, Israel, Denmark, Sweden and Brazil

? 6 May – National Nurses Day 

Why National Nurses Day celebrated?

This day is celebrated to raise awareness of all nurse contributions and commitments and acknowledge the vital role nurses play in society. This day is also the first day of National Nurses Week and is sometimes known as National RN Recognition Day.

  • 6 -12 May : National Nurses Week

National Nurses Week begins May 6th and ends on May 12th, which is the birthday of Florence Nightingale (May 12, 1820 – August 13, 1910). 

? 7 May – World Athletics Day
World Athletics Day

Why World Athletics Day celebrated?

This day is celebrate globally to spread awareness among children and youths regarding the importance of fitness.

What is the Objective of World Athletics Day?

  • The objective of World Athletics day is to increase public awareness about sports and to educate youngsters about the importance of sports.
  • To promote athletics as the primary sport in schools and institutions.

Important points for all competitive exams

  • World Athletics President: Sebastian Coe;
  • World Athletics Headquarters: Monaco;
  • World Athletics Founded: 17 July 1912.
? 7 May – Rabindranath Tagore Jayanti

Why Rabindranath Tagore Jayanti celebrated?

Rabindranath Tagore Jayanti or Rabindra Jayanti is a cultural celebration to mark the birth anniversary of one of the most celebrated litterateurs in the world. Born to Debendranath Tagore and Sarada Devi, Rabindranath Tagore was also referred to as ‘Gurudev’, ‘Kabiguru’, and ‘Biswakabi’.

Celebrated annually and globally on May 7, Rabindranath Tagore Jayanti is celebrated on the 25th day of the Bengali month of Boishakh.

? 8 May – World Red Cross Day

Theme for 2021 : ” Unstoppable “

World Red Cross Day

Why World Red Cross Day celebrated?

This day honours those millions of volunteers, staff, and members across the world who protect human life and health.

Facts- This date is the anniversary of the birth of Jean-Henry Dunant, who was born on 8 May 1828. He was the founder of International Committee of the Red Cross (ICRC) and the recipient of the first Nobel Peace Prize.

? 8 May – World Migratory Bird Day (2nd Saturday)

Theme for 2021 : ” Sing , Fly , Soar Like A Bird “

World Migratory Bird Day

Why World Migratory Bird Day celebrated?

The day is celebrated to raise awareness of migratory birds and the importance of international cooperation to conserve them.

Facts- This day is organized by a collaborative partnership among two UN treaties the Convention on Migratory Species (CMS) and the African-Eurasian Migratory Waterbird Agreement (AEWA) and the Colorado-based non-profit organization, Environment for the Americas (EFTA). This day is a global campaign dedicated to raising.

? 08 May – World Thalassemia Day

Theme for 2021 : “Addressing Health Inequalities Across the Global Thalassemia Community”

World Thalassemia Day

Why World Thalassemia Day celebrated?

This day is celebrated to raise awareness about thalassaemia disease, its preventive measures and to avoid transmission among the people throughout the world.

? 11 May – National Technology Day

On 11th of May,1998 India victoriously test fired the nuclear missile, Shakti-I at the Pokhran Test Range of Indian Army in Rajasthan. It is a reminder of the anniversary of Shakti


  • The first nuclear test Pokhran with a codenamed as ‘Smiling Buddha’ was carried out in May 1974.
  • The test was led by late aerospace engineer & President Dr. APJ Abdul Kalam. Later, Prime Minister Atal Bihari Bajpayee declared India as a nuclear state.
  • Ministry of Science & Technology, Health & Family Welfare, Earth Science

▪️Harsh Vardhan
▪️Chandni Chowk, Delhi

? 12 May – International Nurses Day
International Nurses Day

Theme for 2021 : “Nurses: A Voice to Lead – A vision for future healthcare”

The theme for 2020 was Nurses: A Voice to Lead – Nursing the World to Health.

Theme for 2019 was “Nursing: The Balance of Mind, Body, and Spirit”.

Why International Nurses Day celebrated?

This day is celebrated thank all nurses, their dedication, and work, especially during the ongoing coronavirus pandemic. Nurses are indispensable in safeguarding public health.

? 15 May – International Day of Families

Theme for 2021 – “Families & New Technologies”

Why International Day of Families celebrated?

This day is celebrated to highlight the important affairs central to the welfare of families, such as health, education, gender equality, rights for children, and social inclusion among others.

? 16 May – World Agri-Tourism Day

Theme for 2021 : ” Rural Women Sustainable Entrepreneurship Opportunities Through Agri Tourism “

Why World Agri-Tourism Day celebrated?

This day is celebrated to educate the tourists on how agricultural activities are done in farms.

? 16 May – International Day Of Living Together In Peace

Theme for 2021- “Recovering better for an equitable and sustainable world”

International Day Of Living Together In Peace

Why International Day Of Living Together In Peace celebrated?

The Day is celebrated to uphold the desire to live and act together, united in differences and diversity, in order to build a sustainable world of peace, solidarity and harmony.

Facts- In 2017, The United Nations General Assembly decided to make 16th May the International Day of Living Together in Peace.

? 16 May – International Day Of Light
International Day Of Light

Why International Day Of Light celebrated?

This day is celebrated to raise awareness of the critical role light-based technologies play in our lives, elevating science, technology, art, and culture to help achieve the goals of UNESCO – education, equality, and peace.

? 16 May – National Dengue Day

Theme for 2021 – “Detecting dengue fever amidst pandemic, its treatment, and prevention”

Why Dengue Prevention Day celebrated?

This day is celebrated to create awareness about the disease. Measures to prevent and preparing to control the spread of dengue are among a few things that are discussed and shared

? 17 May – World Telecommunication Day

Theme for 2021 : “Accelerating Digital Transformation In Challenging Times”

World Telecommunication Day

? 17-23 May 2021 : 6th UN Road Safety Week

Why World Telecommunication Day celebrated?

This day is celebrated to raise awareness about the importance of communication and focuses on increasing the United Nations Sustainable Development Goals. The day also focuses on how information travels across the world.

?17 May – World Hypertension Day

Theme for 2021 : “Measure Your Blood Pressure Accurately , Control It , Live Longer”

(The theme focuses on combatting low awareness rates across the globe, mainly in low to middle-income areas, and accurate blood pressure measurement methods).

The theme of World Hypertension Day 2020 was”Measure Your Blood Pressure, Control It, Live Longer.” The theme focuses on increasing high blood pressure (BP) awareness in all populations around the world. 

The theme of World Hypertension Day 2019 was “Know your numbers”. 

Why World Hypertension Day celebrated?

This day is celebrated to spread awareness about hypertension disease, its prevention, detection, and control. The main risk factor to develop cardiovascular disease is high blood pressure.

? 18 May – World AIDS Vaccine Day

Why World AIDS Vaccine Day celebrated?

This day is celebrated to promote the continued and urgent need for a vaccine to prevent HIV infection and AIDS.

The day acknowledges and thanks volunteers, health professionals supporters, and scientists who are working together to find a safe and effective AIDS vaccine.

Facts – The First World AIDS Vaccine Day Was Observed On May 18 , 1998.

? 18 May – International Museum Day

Theme for 2021 : “The Future of Museums: Recover and Reimagine”

International Museum Day

The theme of International Museum Day 2019 was “Museums as Cultural Hubs: The future of tradition”.

The theme of International Museum Day 2018 was “Hyperconnected museum: New approaches, new publics”.

The theme of International Museum Day 2017 was “Museums and Contested Histories: Saying the unspeakable in museums “.

The theme of International Museum Day 2016 was “Museums and Cultural Landscapes”.

Why International Museum Day celebrated?

This day is celebrated to raise awareness among people about the museums as an important means of cultural exchange and development of mutual understanding, cooperation, and peace among people. 

Facts – International museum day was first held in 1977.

Important points for all competitive exams

  • India first Dinosaur museum – Gujarat
  • First Maritime Museum Lothal Gujarat
  • Largest Museum of India : Kolkata Indian
? 20 May – World Bee Day

Theme for 2021 – “Bee Engaged – Build Back Better for Bees”

World Bee Day

Why World Bee Day celebrated?

This day is celebrated to raise awareness of the importance of pollinators, the threats they face and their contribution to sustainable development.

? 21 May – National Anti-Terrorism Day

Why National Anti-Terrorism Day celebrated?

This day is celebrated to provide knowledge to the youth about terrorism, its impact on human suffering, and lives. This day also makes people aware of an anti-social act of terrorism.

Facts – Observed across India to commemorate the death anniversary of the former Prime Minister Rajiv Gandhi.

  • He was assassinated on this day in 1991, by LTTE cadres in a suicide bombing attack at a rally at Sriperumbudur in Tamil Nadu.
  • Rajiv Gandhi was the youngest prime minister of India when he was sworn in at 40.
  • The Anti Terrorism Day is observed to spread the message of peace and humanity. Unity in diversity is India’s greatest strength.
? 21 May – World Day For Cultural Diversity For Dialogue & Development

Why World Day For Cultural Diversity For Dialogue & Development celebrated?

This day is celebrated helps in spreading awareness among people regarding the richness of the world’s cultures and highlight the significance of cultural diversity. 

? 21 May – International Tea Day

Theme for 2021 : “Tea and Fair Trade”

International Tea Day

Why International Tea Day celebrated?

This Day is celebrated to express the economical, biological and physical benefits of tea.

? 22 May – International Day for Biological Diversity

Theme for 2021 : ” We’re Part Of The Solution “

Why International Day for Biological Diversity celebrated?

This day is celebrated to increase understanding and awareness of biodiversity issues.

? 23 May – World Turtle Day

Theme for 2021 – “Turtles Rock”

Why World Turtle Day celebrated?

The day is celebrated to raise awareness among people to protect turtles and tortoises and their disappearing habitats around the world. 
World Turtle Day Was Founded By The American Tortoise Rescue.

Important points for all competitive exams

  1. Founders of American Tortoise Rescue: Susan Tellem and Marshall Thompson.
  2. American Tortoise Rescue is located in Malibu, California.
  3. American Tortoise Rescue was founded in 1990.
? 24 May – International Commonwealth Day

Theme for 2021- “Delivering a Common Future”

Why International Commonwealth Day celebrated?

This day is celebrated by all the countries that were once under the reign of the British Empire, Commonwealth Day is celebrated on the birth date of Queen Victoria, who was born on May 24, 1819.

? 2010- New delhi
? 2022- Birmingham England

About Commonwealth of Nations
▪️Established in 1949
▪️ Member States: 54 (Maldives new joined)
▪️ Headquarters: London, UK
▪️ Secretary-General: Patricia Scotland
▪️Queen Elizabeth II is the Head of the Commonwealth.

? 25 May – International Missing Children’s Day (IMCD)

Why International Missing Children’s Day celebrated?

This day is observed for missing children who have found their way home, remember those that are victims of crime, and continue efforts to seek out those that are still missing.


  • In 1983, former US President Ronald Reagen declared 25th May as United States’ National Missing Children’s Day. 
  • There are five articles in the constitution of India which have Children as their special focus
  • ?21A,
  • ?24,
  • ?39 &
  • ?45 and 51A (k)

?International Centre for Missing and Exploited Children (ICMEC)
?‍♀ Formation: May 1998
?‍♀ Headquarters: Alexandria, Virginia, USA

? 25 May – World Thyroid Day

Why World Thyroid Day celebrated?

This day is celebrated to aware of the importance of Thyroid and the prevention and treatment of thyroid .

? 31 May – World No Tobacco Day or Anti Tobacco Day

Theme for 2021 – “Commit to Quit”

World No Tobacco Day or Anti Tobacco Day

The theme of World No Tobacco Day or Anti Tobacco Day 2020 was “Protecting youth from industry manipulation and preventing them from tobacco and nicotine use”.

The theme of World No Tobacco Day or Anti Tobacco Day 2019 was “Tobacco and Lung Health”.

Why Anti-Tobacco Day celebrated?

This day is celebrated to spread awareness about the hazardous effects of Tobacco on the health of people consumed via cigarettes, snuff, chew, etc.

? First Tuesday of May – World Asthma Day

Theme for 2021 : ” Uncovering Asthma Misconceptions “

World Asthma Day

Why World Asthma Day celebrated?

This day is celebrated to raise awareness of Asthma worldwide. It aims to educate people on how best to get control over this respiratory problem and other allergic diseases.

? Second Sunday of May: Mother’s Day
? Third Friday in May: National Endangered Species Day
? Third Saturday of the May: Armed Forces Day
? Last Monday of May: National Memorial Day
NASA Celebrated Asian American Pacific Islander Heritage Month

Theme : Advancing Leaders Through Purpose-Drive Services

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