Short answers, pulled from the story.
Baccano! is a Japanese light novel series written by Ryohgo Narita, set primarily in Prohibition-era New York City. It follows alchemists, thieves, mafiosi, and immortals whose lives collide after an immortality elixir is recreated in Manhattan in 1930. The story is told from multiple points of view across a timeline stretching from 1711 to 2002.
Ryohgo Narita wrote the Baccano! light novels, with illustrations by Katsumi Enami. The first novel, The Rolling Bootlegs, was published in February 2003 under ASCII Media Works' Dengeki Bunko imprint. As of August 2016, twenty-two novels in the series had been released.
Yes. The first Baccano! light novel, The Rolling Bootlegs, won the Gold Prize at ASCII Media Works' ninth Dengeki Novel Prize in 2002, placing third among all entries.
The Baccano! anime has sixteen episodes. The first thirteen aired on the Japanese pay-per-view station WOWOW from July 26 to the 1st of November 2007, and the final three were released direct-to-DVD. The series was directed by Takahiro Omori and produced by Brain's Base and Aniplex.
Funimation dubbed and licensed Baccano! for North America, streaming it subtitled and dubbed through their website and through Hulu during October 2009. Funimation's streaming and distribution rights expired on the 8th of February 2016, when the license transferred to Aniplex of America. In the UK, the series was released by Manga Entertainment; in Australia and New Zealand, by Madman Entertainment.
Yen Press announced at the 2015 Anime Expo that it would publish the novels in English. The English edition of the first volume, The Rolling Bootlegs, was published in May 2016.