The World Day Against Trafficking in Persons was observed globally on 30 July 2026 under the UN theme 'Trapped Behind the Scam', focusing on people trafficked into online scam and cyber-fraud operations and forced into cyber-enabled crime through coercion, debt and surveillance. The day was established by a United Nations General Assembly resolution in 2013. The UN Office on Drugs and Crime (UNODC) leads global anti-trafficking efforts, symbolised by its Blue Heart Campaign.
GK ByteDate: 30 July; established by UNGA resolution in 20132026 theme: 'Trapped Behind the Scam'Lead agency: UNODC (HQ Vienna); symbol: Blue Heart Campaign
World Hepatitis Day (WHD) is observed every year on 28 July to raise awareness about viral hepatitis and accelerate global efforts to eliminate it as a public-health threat by 2030. The 2026 theme is 'Hepatitis: Let's Break It Down'. The date marks the birth anniversary of Dr Baruch Samuel Blumberg, who discovered the Hepatitis B Virus (HBV) in 1967 (and won a Nobel Prize for it). The first global WHD was observed on 19 May 2008 by the World Hepatitis Alliance; in 2010 the 63rd World Health Assembly designated 28 July as WHD, with the first WHO-recognised observance in 2011.
GK ByteWorld Hepatitis Day is observed on 28 July every year2026 theme: 'Hepatitis: Let's Break It Down'28 July marks the birth anniversary of Dr Baruch Blumberg, who discovered Hepatitis B Virus (1967)Officially designated by the 63rd World Health Assembly (2010); a WHO campaign
International Tiger Day, also called Global Tiger Day, is observed worldwide every year on 29 July to raise awareness about tiger conservation and the protection of tiger habitats. The day was established at the 2010 St. Petersburg Tiger Summit in Russia, where tiger-range countries pledged to double the wild tiger population (the TX2 goal) by 2022. India is home to the majority of the world's wild tigers and conserves them through Project Tiger (launched 1973) and the network of tiger reserves overseen by the National Tiger Conservation Authority (NTCA).
GK ByteInternational (Global) Tiger Day is observed on 29 July every yearEstablished at the 2010 St. Petersburg Tiger Summit (Russia)India hosts the majority of the world's wild tigersConserved via Project Tiger (1973) and the NTCA
World Hepatitis Day (WHD) is observed every year on 28 July to raise awareness about viral hepatitis and accelerate efforts to eliminate it as a public-health threat by 2030. The 2026 theme is 'Hepatitis: Let's Break It Down.' The date marks the birth anniversary of Dr. Baruch Samuel Blumberg, the Nobel laureate who discovered the Hepatitis B Virus (HBV) in 1967. The World Health Organization (WHO) officially designated 28 July as WHD in 2010 (Resolution WHA63.18), with the first WHO-recognised observance held in 2011. Hepatitis is inflammation of the liver, caused mainly by hepatitis viruses A, B, C, D and E.
GK ByteWorld Hepatitis Day is observed on 28 July; 2026 theme: 'Hepatitis: Let's Break It Down'Marks the birth anniversary of Dr. Baruch Blumberg (discovered the Hepatitis B virus, 1967)WHO officially designated the day in 2010 and targets hepatitis elimination by 2030
The United Nations observes World Chess Day annually on 20 July, marking the founding of FIDE (International Chess Federation) on 20 July 1924 in Paris. The 2026 theme is Celebrate, create and make a difference. The UNGA proclaimed the day via Resolution A/RES/74/22 on 12 December 2019 (introduced by Armenia); the first UN observance was on 20 July 2020.
GK ByteWorld Chess Day is observed on 20 JulyMarks the founding of FIDE on 20 July 1924 in Paris2026 theme: Celebrate, create and make a differenceProclaimed by UNGA Resolution A/RES/74/22 (2019)
The United Nations observes World Chess Day (also called International Chess Day) annually on 20 July to celebrate chess as one of the world's oldest intellectual games and its role in promoting education, peace, inclusion and global cooperation.
2026 Theme: 'Celebrate, create and make a difference'
The date marks the founding of FIDE (Federation Internationale des Echecs / International Chess Federation) on 20 July 1924 in Paris, France.
Background: The idea of celebrating International Chess Day was first proposed by UNESCO. FIDE has observed 20 July as International Chess Day since 1966. On 12 December 2019, the UN General Assembly adopted Resolution A/RES/74/22, officially proclaiming 20 July as World Chess Day; the resolution was introduced by Armenia and co-sponsored by 52 countries. The first UN-recognised World Chess Day was observed on 20 July 2020.
GK ByteWorld Chess Day is observed annually on 20 July; 2026 theme: 'Celebrate, create and make a difference'Marks the founding of FIDE on 20 July 1924 in Paris, FranceUNGA Resolution A/RES/74/22 (12 December 2019) proclaimed the day; introduced by ArmeniaFIDE has observed the day since 1966; first UN observance was in 2020
International Chess Day, also known as World Chess Day, is observed annually on 20 July worldwide to celebrate the game of chess and the people it brings together.
Why 20 July: The date marks the founding of the International Chess Federation (FIDE) in Paris on 20 July 1924. It is an official United Nations observance, recognised by the UN General Assembly in 2019.
Observance 2026: FIDE invited the global chess community to mark International Chess Day 2026 through creative games, inclusive events and a live discussion on chess as a tool for social change. The 2026 programme emphasised inclusivity, strategy and global harmony, and included the Creative Chess challenge, activities by the FIDE Commission for Women's Chess, and a Social Commission panel featuring speakers involved in prison chess, refugee projects and community programmes worldwide.
GK ByteInternational Chess Day / World Chess Day is observed on 20 JulyThe date marks the founding of FIDE in Paris on 20 July 1924It became an official UN observance following a UN General Assembly resolution in 2019FIDE's 2026 programme focused on inclusivity, strategy and chess as a tool for social change
Nelson Mandela International Day is observed every year on 18 July, Mandela's birthday, to honour his legacy of peace, freedom and social justice. The 2026 theme is "It's Still in Our Hands to Combat Poverty and Inequity." The day encourages people to devote 67 minutes to community service — one minute for each of Mandela's 67 years of public service. It was declared by the UN General Assembly in 2009 and first observed in 2010.
GK ByteNelson Mandela International Day observed on 18 July2026 theme: It's Still in Our Hands to Combat Poverty and InequityMarked by 67 minutes of community serviceDeclared by UN General Assembly in 2009; first observed 2010
World Day for International Justice is observed annually on 17 July to recognise the international criminal justice system. The date marks the adoption of the Rome Statute on 17 July 1998, which established the International Criminal Court (ICC) — the first permanent global tribunal for war crimes, crimes against humanity and genocide.
The ICC is headquartered in The Hague, Netherlands. July 17 is also observed globally as World Emoji Day, founded in 2014 by Jeremy Burge of Emojipedia.
GK ByteMarks adoption of the Rome Statute (17 July 1998)Rome Statute established the ICC, based in The Hague17 July is also World Emoji Day (founded 2014)
World Population Day (11 July) was observed with the 2026 theme "Realizing the hopes and aspirations of young people"; established 1989 by the UNDP Governing Council. International Malala Day (12 July) marks the birth anniversary of Malala Yousafzai, the youngest Nobel laureate. The International Day of Combating Sand and Dust Storms (12 July) was observed; the UN declared 2025–2034 the UN Decade on Combating SDS. World Horse Day (11 July) saw its 2nd observance.
GK ByteWorld Population Day: 11 July (since 1990, theme on youth)Malala Yousafzai: Nobel Peace Prize 2014, youngest laureateUN Decade on Combating SDS: 2025–2034
World Population Day is observed every year on 11 July to raise awareness of global population issues. The 2026 theme is 'Realizing the hopes and aspirations of young people - today and for the future,' focusing on young people's choices around relationships and parenthood. The day was established by the UNDP in 1989, inspired by the 'Day of Five Billion' (11 July 1987), when the world's population reached five billion. The UN Population Fund (UNFPA) leads global coordination. India became the world's most populous country in 2023. The global population is around 8.3 billion in 2026.
GK ByteWorld Population Day: 11 July2026 theme centres on young people's aspirationsEstablished by the UNDP in 1989Inspired by the 'Day of Five Billion' (1987)