It depends on which country you're talking about. In some countries, it never got shunned or criminalized.
Greece
shunned the soldiers
Homosexuality has been practised since before any written history. No one can know when and where.
To be clear, homosexuality is not something that a person "commits." It is a natural part of a person. Some people are born gay and some are born straight. Homosexuality has been around since the dawn of humanity, so no one knows who the first gay person was.
Homosexuality was first decriminalized in France in 1791 during the French Revolution. However, specific laws that explicitly legalized homosexuality vary by country and time period.
Since before humans were on earth.
Homosexuality has no apparent origin. Another View: Homosexuality has been documented for over 5 thousand years, there would be no way of knowing the first man's name.
First of all, murder is a serious crime, while in most western jurisdictions, homosexuality is not. Although some religions regard homosexuality as a sin, it is a victimless sin, unlike murder. So, thinking of homosexuality may be natural for some, but thinking of murder never should be.
If they did, they kept it pretty quiet! Four Popes in history have been alleged to have practised homosexuality, they were all in the 15th and 16th century.
There is not a single person, but the city of Sodom and Gomorrah, which according to Christian interpretation, God destroyed because homosexuality is an "abomination" to God (Jewish interpretation is completely different).
This is unknowable, since homosexuality has been around for milleniums.
what was the first society to have a republic