In the Nazi concentration camps, the pink triangle begins to be used to point to homosexuals, so the people started to discriminate them.
The first march was started because of the discrimination of police against a group of LGBT people
As a result of the Stonewall unrest´s, as a result many people became awared of what was happening.
Gilber Baker designed the firts LGBT flag, and it was seen honing in San Francisco at the Pride Festival.
The OMS eliminated the homosexuality from the list of mental illness.
In Holland, it was the first country to approve homoparental adoption
It became the first country that make it legal at 2001rom:https://es.wikipedia.org/wiki/Matrimonio_entre_personas_del_mismo_sexo#Pa%C3%ADses_Bajos
The UN passed the resolution to combat violence and discrimination based on sexual orientation and gender identity
Ángela Ponce was the first shemale that won the contest Miss World Spain, so it helped people to accepted the LGBT´s groups.
Gender dysphoria is removed from the mental illnesses of the World Health Organization.