1813
Bavaria decriminalizes sexual acts between men.
1835
For the first time in its history Poland criminalizes homosexuality
1836
The last known execution for homosexuality in Britain
1859
Sexual pioneer Havelock Ellis was born.
1860
Walt Whitman's second edition of Leaves of Grass published
1861
In England, the penalty for conviction for sodomy is reduced from hanging to imprisonment

The Offences Against the Person Act formally abolished the death penalty for buggery in England and Wales.
1864
Mag. Gen Patrick Cleburne (The "Stonewall Jackson of the West") is killed at the Battle of Franklin (TN)
1864
John Henry Mackay, German author of the man/boy love classic, “The Hustler”, was born in Scotland.
1865
End of the War Between the States
1867
The first time that a self-proclaimed homosexual spoke out publicly for homosexual rights when on 28th. August Karl Heinrich Ulrichs pleaded at the meeting of the Congress of German Jurists for a resolution urging the repeal of all anti-homosexual laws. (He was shouted down.)
1868
James Buchanan, the nation's only bachelor president, dies.
1869
First published use of the term 'homosexuality' (Homosexualität) by Károly Mária Kertbeny , a German-Hungarian campaigner. (He had previously used the term on 6th. May, 1868, in a private letter to Karl Heinrich Ulrichs .)
1870

The world's first attempt at publishing a gay periodical was Urnings in Germany by Karl Heinrich Ulrichs , but there was only one issue.

The novel, Joseph and His Friend , is released

1871
Homosexuality is criminalized throughout Germany by Paragraph 175 of the Reich Criminal Code
1873
Completion of "A Problem in Greek Ethics" by John Addington Symonds
1883
Cross-dresser Lucy Ann Lobdell is featured in British medical journal, Alienist & Neurologist
1885
The "Labouchere amendment" was passed on 7th. August and became known as the "blackmailer's charter".
1886
The Criminal Law Amendment Act of 1885, outlawing sexual relations between men (but not women), is given Royal Assent by Queen Victoria of the United Kingdom
1889
Cleveland Street scandal in London.
1892
The word bisexual is first used in its current sense in Charles Gilbert Chaddock's translation of Kraft-Ebing's Psychopathia Sexualis.
1895
The trials of Oscar Wilde , with his sentencing to two years of prison with hard labour. Oscar Wilde prosecuted under the Criminal Law Amendment Act of 1885 for "gross indecency" and sentenced to two years in prison.

"America the Beautiful" written by Katherine Bates (who enjoyed a 25 year love relationship with Katharine Colman) is published. Publication of Norma Trist
1896
Der Eigene , ("One's Own") a gay periodical, published in Germany by Adolph Brand "A Florida Enchantment" is produced. (two actresses kissing on stage)

Plessy v. Ferguson Loves Coming of Age by Edward Carpenter. Publication of Sexual Inversion by Havelock Ellis and John Addington Symonds.
1897
Founding of Wissennschaftlich-Humanitare Komittee in Berlin by Magnus Hirschfeld.

Discovery of remnants of Sappho's poetry.

McKinley innaugurated as US President.

On 14th. (or 15th.) May in Berlin Magnus Hirschfeld founded the Wissenschaftlich-humanitäre Komitee (Scientific-Humanitarian Committee), the world's first organisation dedicated to the aim of ending the legal and social intolerance of homosexuals.

The English edition of the book Sexual Inversion by Havelock Ellis and John Addington Symonds was published. It was the first book in English to treat homosexuality as neither a disease nor crime, and maintained that it was inborn and unmodifiable.