International Day of Sign Languages
Celebrating Visual Communication and Inclusion
Every year, International Day of Sign Languages is observed on September 23rd to recognise the importance of sign languages in protecting the linguistic identity and cultural diversity of deaf people worldwide. With over 72 million deaf people globally, and more than 300 different sign languages in use, this day highlights the need to promote and preserve these fully-fledged natural languages. Sign language is not just a tool for communication – it’s a vital expression of identity and culture.
The day is also aligned with the launch of the World Federation of the Deaf (WFD) in 1951, a key organisation advocating for the human rights of deaf people and sign language users. From International Sign to local dialects like British Sign Language (BSL) or American Sign Language (ASL), this day is a celebration of diversity, inclusion, and empowerment.
Key Facts About International Day of Sign Languages
| Event | International Day of Sign Languages |
|---|---|
| Date | 23 September (annually) |
| First Celebrated | 2018 |
| Founded By | World Federation of the Deaf (WFD) |
| Purpose | Promote awareness and support of sign languages as full natural languages |
| Global Sign Language Users | Over 72 million |
| Number of Sign Languages | 300+ |
Why It Matters / How It’s Celebrated
Sign languages are visual languages with their own grammar, vocabulary, and cultural significance. However, they are still widely misunderstood and underrepresented. International Day of Sign Languages seeks to empower deaf communities, raise public awareness, and fight linguistic discrimination.
Celebrations and campaigns on this day typically include:
- Global lighting events where landmarks are lit in blue to honour sign languages
- Educational workshops and webinars run by deaf organisations and schools
- Sign language video campaigns featuring greetings or messages in various sign languages
- Social media movements promoting inclusion, rights, and accessibility
- Fundraisers supporting deaf education and advocacy organisations
How to Get Involved
- Learn basic sign language – even a few greetings in BSL or ASL can make someone feel seen and valued
- Host a community awareness event – wine and cheese night, family games night, or educational talk
- Share sign language facts and infographics on your social media using the day’s hashtags
- Support deaf-led organisations and schools through donations or volunteering
- Encourage inclusive practices in your school, business, or organisation by advocating for interpreters and captioning
Frequently Asked Questions
What is the International Day of Sign Languages?
It’s a global awareness day held on September 23rd to celebrate sign languages and promote their use worldwide to ensure equal human rights for deaf people.
Who started this day?
The World Federation of the Deaf established this event in 2018, aligning it with their founding date in 1951.
How many sign languages are there?
There are over 300 known sign languages used by approximately 72 million deaf people globally, each with distinct rules and grammar.
Is sign language universal?
No. Different countries have different sign languages. For example, ASL (American Sign Language) and BSL (British Sign Language) are not mutually intelligible.
How can I learn sign language?
You can start with free resources online, enrol in courses offered by local colleges, or join community groups and events to practice.
Future Dates for International Day of Sign Languages
| Year | Date |
|---|---|
| 2025 | Tuesday, 23 September 2025 |
| 2026 | Wednesday, 23 September 2026 |
| 2027 | Thursday, 23 September 2027 |
| 2028 | Saturday, 23 September 2028 |
| 2029 | Sunday, 23 September 2029 |
Hashtags for International Day of Sign Languages
- #InternationalDayOfSignLanguages
- #SignLanguagesMatter
- #IDSL
- #WFD
- #DeafAwareness
- #SignLanguageRights
- #WithSignLanguage
- Hashtags #InternationalDayOfSignLanguages #SignLanguagesMatter #IDSL #DeafAwareness #SignLanguageRights

