French author Roger Peyrefitte's 1943 novel Les Amitiés Particulières recounts the thwarted romance between two school boys in a Catholic school between the wars.
Married to lesbian Erika Mann and negatively portrayed by her gay brother Klaus Mann in his book Mephisto, gay German actor Gustaf Gründgens' greatest role was Mephistopheles, ironically.
The first movie about gay rights, the 1919 Anders als die Andern features Conrad Veidt and in a minor role, Magnus Hirschfeld, the father of gay research.
The first explicit lesbian character in opera, the tragic roll of the Countess Geschwitz, based on the character from Frank Wedekind's plays, was created originally by mezzo Maria Bernhard in 1937 and in film by Alice Roberts.
Once a minor silent screen actor playing drag roles before the Hayes Code, Fred Kovert resurfaced as Kovert of Hollywood as a beefcake photographer in 1944.
The 1961 British film Victim may seem dated, but it was groundbreaking in its open call for decriminalizing homosexuality in England - and it no doubt contributed to England and Wales making homosexual sex legal between consenting adults in 1967.
The world's first novel is all about two guys fighting for the love - and sexual attentions - of a beautiful young man. The Satyricon, written by Nero's arbiter of taste Petronius is hilarious, strange and perhaps the most accurate picture of Roman we've got.