Harley Quinn is a fictional character appearing in media published by DC Entertainment. The character was created by Paul Dini and Bruce Timm, first appeared in Batman: The Animated Series in September 1992, she appeared in DC Comics' Batman comic books, with the character's first comic book appearance in The Batman Adventures #12. The character is referred to by such epithets as the Cupid of Crime and the Maiden of Mischief. Harley Quinn is a frequent accomplice and lover of the Joker, whom she met while working as an intern psychologist at Gotham City's Arkham Asylum, where the Joker was a patient, her name is a play on the name. The character has teamed up with fellow villains the Catwoman and Poison Ivy several times, the trio being known as the Gotham City Sirens. Poison Ivy is a close friend and recurring ally of Harley being depicted as her girlfriend in recent comics. Since The New 52, she is now depicted as an antihero who left her abusive relationship with the Joker and her past as a supervillain behind.

However, she is still depicted as a supervillain in other media. Harley Quinn has been depicted as a recurring core member of the Suicide Squad. Harley Quinn has been adapted into various other forms of media; the character has appeared in both live-action and animated television series and video games. The character was voiced by Arleen Sorkin in the DC animated universe. Since she has starred in her own animated series, with her voice provided by Kaley Cuoco. In the Birds of Prey television series, she was portrayed by actress Mia Sara. In the Fox series Gotham a character known as Ecco, portrayed by Francesca Root-Dodson and bearing all the characteristics of Harley Quinn, was introduced in the fourth season; the character made her live-action feature film debut in the 2016 film Suicide Squad, portrayed by Margot Robbie. She will appear in The Suicide Squad. Harley Quinn first appeared in the DC Animated Universe's Batman: The Animated Series episode "Joker's Favor," in what was supposed to be the animated equivalent of a walk-on role.

Thus they created a female sidekick for the Joker. Arleen Sorkin, a former star of the soap opera Days of Our Lives, appeared in a dream sequence on that series in which she wore a jester costume. Having been friends with Sorkin since college, Paul Dini incorporated aspects of her personality into the character and got Sorkin herself to voice the character. Quinn was inspired by a mutual female friend's "stormy but nonviolent relationship," according to Timm; the 1994 graphic novel The Batman Adventures: Mad Love recounts the character's origin story. Written and drawn by Dini and Timm, the comic book is told in the style and continuity of Batman: The Animated Series, it describes Dr. Harleen Frances Quinzel, Ph. D. as an Arkham Asylum psychologist who falls in love with the Joker and becomes his accomplice and on-again, off-again girlfriend. The story received wide praise and won the Eisner and Harvey Awards for Best Single Issue Comic of the Year; the New Batman Adventures series adapted Mad Love as an episode of the same name in 1999.

It was the second "animated style" comic book adapted for the series, with the other being "Holiday Knights." Harleen Quinzel becomes fascinated with the Joker while working at Arkham Asylum and volunteers to help treat him. She falls hopelessly in love with the Joker during their sessions, she helps him escape from the asylum more than once; when Batman returns a injured Joker to Arkham, she dons a jester costume to become Harley Quinn, the Joker's sidekick. The Joker insults, ignores and tries to kill Harley, but she always comes back to him, convinced that he genuinely loves her. After Batman: The Animated Series and The New Batman Adventures, Harley makes several other animated appearances, she appears as one of the four main female characters of the web cartoon Gotham Girls. She made guest appearances in other cartoons within the DC animated universe, appearing alongside the Joker in the Justice League episode "Wild Cards" and alongside Poison Ivy in the Static Shock episode "Hard as Nails."

Harley Quinn appears in World's Finest: The Batman/Superman Movie as a rival and foil for Lex Luthor's assistant Mercy Graves. In the film's climax, Harley ties Graves as a human shield to a combat robot set to confront Superman and Batman, but Graves is rescued by the two heroes without suffering any harm; the animated movie Batman Beyond: Return of the Joker takes place in the future, long after the events in Batman: The Animated Series. It includes a flashback scene in which Harley helps the Joker torture Tim Drake until he has become "Joker Jr." an insane miniature version of the Clown Prince of Crime. At the end of the movie, a pair of twin girls who model themselves on the Joker are released on bail to their grandmother, who angrily berates them — to which they answer: "Oh, shut up, Nana Harley!" Prior to this, her costume made several appearances in episodes in the future Batcave. Dr. Harleen Frances Quinzel is depicted as having been a psychiatrist at

The 2011–12 Welsh Football League Division Three began on 16 August 2011 and ended on 16 May 2012. Bridgend Street were promoted from the South Wales Senior League and Undy Athletic were promoted from the Gwent County League. Cwmamman United were relegated to the District League. Cwmbrân Town were relegated to the Gwent County League. South Gower were relegated to the Swansea Senior League. Porthcawl Town Athletic were relegated to the South Wales Senior League. Caerau, Monmouth Town and Tata Steel were promoted to the Welsh Football League Division Two. AFC Llwydcoed, Abertillery Bluebirds and Llangeinor were relegated from the Welsh Football League Division Two. Llangeinor withdrew from the league in December. Welsh Football League

In geometry, the heptagrammic-order heptagonal tiling is a regular star-tiling of the hyperbolic plane. It has Schläfli symbol of; the vertex figure heptagrams are. The heptagonal faces overlap with density 3, it has the same vertex arrangement as the regular order-7 triangular tiling. The full set of edges coincide with the edges of a heptakis heptagonal tiling, it is related to a Kepler-Poinsot polyhedron, the great dodecahedron, polyhedron and a density-3 regular star-tiling on the sphere: John H. Conway, Heidi Burgiel, Chaim Goodman-Strass, The Symmetries of Things 2008, ISBN 978-1-56881-220-5 "Chapter 10: Regular honeycombs in hyperbolic space"; the Beauty of Geometry: Twelve Essays. Dover Publications. 1999. ISBN 0-486-40919-8. LCCN 99035678. Weisstein, Eric W. "Hyperbolic tiling". MathWorld. Weisstein, Eric W. "Poincaré hyperbolic disk". MathWorld