25 years ago today, homosexuality was removed from the International Classification of Diseases.

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On Sunday, The International Business Times reported that today marks a monumental moment in the fight for gay rights.

The International Day Against Homophobia, Transphobia and Biphobia was established in 2004 after 24,000 people campaigned for a year for the IDAHO Initiative.

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Transphobia was added to the name of the campaign in 2009 which would focus on the violence and discrimination against transgender people.

Enormous legal progress for lesbian, gay and bisexual equality has been made since Stonewall was founded 25 years ago," says Matt Horwood, of the charity Stonewall. "As well as the repeal of Section 28, gay people can now openly serve in the military, the age of consent is equal, same-sex couples can marry and it's illegal to be discriminated against because of your sexual orientation."

Now, people are supporting the initiative in a new way -- on Twitter. #IDAHOT is currently trending with photos of the violence that occurs and words if inspiration for those who are at the heart of the issue.

There's still lots to do in terms of laws that specifically affect trans people," Horwood said. "Reforming laws affecting trans people is a concern of ours and we must look to work with the new government in addressing this. Lesbian, gay, bisexual and trans people are still not treated equally by society and face discrimination every day. And until all people are accepted without exception - our work continues."

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