It's 800 years since Magna Carta was signed - a document that set out basic rules about how the country would be run.
Nowadays, we also have special rights for children as well such as the right to an education.
But what rights are important to you?
We wanted to know what rights matter most to you and what you think about the way children are treated around the world.
I think that we need to do a lot more to protect the children outside the UK as they need a better lifestyle and more opportunities.
Martha, Ipswich, England
The right that is important to me is being able to have an education.
Jessica, London, England
My life without rights would be different because it would mean I couldn't get free education.
Theo, Kingston-Upon-Hull, England
I have a copy of the Human Rights Act on my bedroom wall because every right is important to me and I don't want to forget them. I know what it is to be free. I think it's disgusting that the Conservatives want to scrap it and replace it with a British Bill of Rights. To be honest I could go on forever about this subject. I take it very seriously.
Amy, United Kingdom
To me the most important rights are to have food and drink and to have an education. I also think that people living out of the UK should have the same rights as us so they can have a happy life like us, and not have to work - like in India!
Erin, Glasgow, Scotland
The most important right to me is that I get an education. This is because there are countries where this does not always happen.
Charlotte, Isle of Man
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