Autism Sunday was first held in 2002 during Autism Awareness Year in the United Kingdom. It was initiated by parents and carers Ivan and Charika Corea, founders of the Autism Awareness Campaign UK. Parents of Charin, a teenager with autism spectrum disorder and a communication disorder, they urged leaders of religious organisations, churches, community groups and world leaders around the globe to speak up for people with autism and Asperger syndrome. What started as a small acorn of an idea in their home has turned into a huge international event. Autism Sunday is now celebrated across the world in many countries.
The first service for autism was held in February 2002 at St Paul's Cathedral in London. Former Education Ministers, peers from the House of Lords, celebrities, writers, broadcasters, and the media joined children and people at St Paul's Cathedral to pray for children and adults with autism and Asperger syndrome, as well as their parents and caregivers.
In 2008, the first Early Day Motion on Autism Sunday was tabled in the House of Commons, in the Palace of Westminster. The motion, EDM 874, was sponsored by David Drew MP and signed by 71 members of Parliament. It calls on the Government to work with all faith communities in order to reach out to parents, caregivers and people with autism and Asperger syndrome in local communities; and urges church leaders and community groups of all denominations to engage with people with autism and Asperger syndrome. The British Prime Minister, David Cameron extended his personal support for Autism Sunday.
Debate in the House of Commons
Autism Sunday was mentioned in a debate in the House of Commons in the British Parliament. David Taylor (British politician) MP mentioned the day and called for action stating that the 'Churches and other religious organisations will be supporting an international day of prayer for those with autism and Asperger’s syndrome. Will the Leader of the House take this as a bid for a topical debate on the issue, which affects hundreds of thousands of people throughout the country?The conditions are under-recognised and under-resourced and they badly need a national strategy, a national taskforce and a well resourced plan for the future.' 
In reply, the Leader of the Commons,(at the time) Harriet Harman MP said: 'For many years, families have struggled to support and care for children with autism, often to a great extent on their own and without the proper back-up of integrated services. There is now a great deal more awareness of the difficulties of autism and Asperger’s syndrome, and a recognition of the importance of early diagnosis and integrated services. I congratulate the Churches on picking this for an international day of prayer, and we would like to work with the Churches, local government and the voluntary sector to ensure that families with a family member who develops autism or Asperger’s have the backing that they need in future.' 
International Day of Prayer for Autism and Asperger Syndrome
Churches of all denominations around the world now honor the millions of people with autism on Autism Sunday, the International Day of Prayer for Autism and Asperger Syndrome. Organisers estimate there are 60 million people with autism around the world. Campaigners have said that many suffer without proper public services in education, health,specialist speech therapy and respite care in several parts of the world, particularly in Africa and Asia. The credit crunch and the global recession which hit many countries in 2008-2009 also affected the Autism Community. In the UK, people were concerned about the cuts to disability benefits and cuts to public services. Homes were re-possessed during the economic downturn and some families below the poverty line had to choose between heating and eating.
World church leaders have been supporting Autism Sunday. Pope Benedict XVI told the organisers that he would be praying for the autism community on Autism Sunday. Some of the largest churches in the United States, including Rick Warren's Saddleback Church, have pledged to pray for over 60 million people with autism and Asperger syndrome on Autism Sunday. Support came from the Bishop of London in the United Kingdom, Rt.Rev.Richard Chartres. 
The organisers have urged parents, carers and the worldwide Autism Community to use Autism Sunday as a platform to lobby and campaign on the serious issues. Support for Autism Sunday 2011 came from the Chilean Miner, Jose Henriquez, the 24th miner to be rescued from the San Jose mine. Henriquez was invited by U.S. President Barack Obama to address the Presidential Prayer Breakfast in February 2011. He met Ivan and Charika Corea, the Founders of Autism Sunday in the UK, prior to his departure to Washington, D.C. They presented him with his first ever autism awareness ribbon.The news of the presentation was relayed by the media in Chile. Jose Henriquez released a special message in support of Autism Sunday 2011.
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- "MPs call for urgent action on Autism and Winter Fuel Poverty". 2008. http://www.bloggernews.net/119059. Retrieved 2009-01-24.
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- "Autism Sunday: World Church Leaders send messages of support". 2009. http://www.bloggernews.net/119578. Retrieved 2009-01-31.
- "Autism Sunday 2011". 2011. http://autismsunday.blog.co.uk/2011/01/13/autism-sunday-10360182/. Retrieved 2011-01-16.
- "Chilean Miner Jose Henriquez presented with autism ribbon to mark Autism Sunday 2011". 2011. http://ukautismnews.blog.co.uk/2011/01/30/chilean-miner-jose-henriquez-presented-with-autism-ribbon-to-mark-autism-sunday-10465070/. Retrieved 2011-02-08.
- "Autism ribbons presented to miner Jose Henriquez". 2011. http://www.ilovechile.cl/2011/02/01/autism-ribbons-presented-to-miner-jose-henriquez/16694. Retrieved 2011-02-08.
- "Jose Henriquez the Chilean Miner sends a special message for Autism Sunday 2011". 2011. http://www.bloggernews.net/126000. Retrieved 2011-02-09.
- "Join the Autism Sunday Twitter Storm on 13th February". 2011. http://autismsunday.blog.co.uk/2011/01/30/join-the-autism-sunday-twitter-storm-on-13th-february-10464141/. Retrieved 2011-02-08.
- Autism Sunday Official Website
- Autism Sunday Blog
- Autism Sunday Website
- Coping With A Thunderbolt - Church Times
- Autism Sunday - Act on Autism Church Urged - Church Times UK Feature
- Key Leaders Back Autism Sunday - Medical News Today
- Praying for a time when every Sunday is Autism Sunday - About.Com Special Needs Children
- Poem Video made by Janice L. Cox for UK Autism Foundation London Service for Autism Sunday
- US News report on Television on Autism Sunday (22 News)
- Autism Sunday (International Day of Prayer for Autism) Facebook Page