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| BOGUS BUSINESS BUREAU |
| 1 | 1080 GCR | BBB | Radio | Radio Stations |
| 1080 GCR News radio station in Gotham City. "You get all the news you need, all day long"
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| 2 | Ace in the Hole | BBB | Video | Adult Films |
| Ace in the Hole Pornographic movie playing in Gotham City.
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| 3 | American Playboy  | BBB | Video | Movies-misc |
| American Playboy New movie featuring actor Ethan Chase, guest on the Murray Franklin Show.

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| 4 | Amusement Mile | BBB | Entertainment | Amusement Parks |
| Amusement Mile Gotham City version of Coney Island.
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| 5 | Arkham Asylum  | BBB | Healthcare | Hospitals-Mental Health |
| Arkham Asylum Mental asylum mentioned in Penny Fleck's Psychiatric History and Evaluation form.

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| 6 | Arkham State Hospital  | BBB | Healthcare | Hospitals-Mental Health |
| Arkham State Hospital Mental hospital in Gotham City.

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| 7 | Ballinger Department Store  | BBB | Retail | Department Stores |
| Ballinger Department Store Department store in Gotham City.

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| 8 | Deluxe | BBB | Entertainment | Movie Theaters |
| Deluxe Movie theater playing pornographic movies in Gotham City.
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| 9 | Dr. Benjamin Stoner | BBB | Healthcare | Therapy |
| Dr. Benjamin Stoner Doctor that diagnosed Arthur's mother Penny at Arkham State Hospital.
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| 10 | The Elk Hotel  | BBB | Travel | Hotels |
| The Elk Hotel Hotel in Gotham City.

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| 11 | Farnally Food Distributors  | BBB | Services | Shipping and Storage |
| Farnally Food Distributors Company operating in Gotham City.

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| 12 | Gotham City Police  | BBB | Legal Aid | Police Departments |
| Gotham City Police Local police department in Gotham City.

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| 13 | Gotham Examiner  | BBB | Media | Newspapers-misc |
| Gotham Examiner Newspaper headline: Killer Clown on the Loose.

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| 14 | Gotham General  | BBB | Healthcare | Hospitals |
| Gotham General Local hospital where Arthur's mother is taken after being questioned by the police detectives.

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| 15 | Gotham Journal  | BBB | Media | Newspapers-misc |
| Gotham Journal Gotham City newspaper. Headline: VIGILANTE CLOWN STILL AT LARGE.

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| 16 | Ha-Ha's Amusement  | BBB | Services | Advertising and Marketing |
| Ha-Ha's Amusement Company where Arthur used to work, clown advertisement.

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| 17 | Helms Pharmacy  | BBB | Retail | Drugstores |
| Helms Pharmacy Drug store in Gotham City.

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| 18 | IBN  | BBB | Video | TV-News Networks |
| IBN TV news network in Gotham City that reports on the death of Murray Franklin.

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| 19 | Kenny's Music Shop  | BBB | Performing Arts | Music Stores |
| Kenny's Music Shop Music shop that's going out of business, where Arthur Fleck works dressed up as a clown spinning a sign.

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| 20 | Live with Murray Franklin  | BBB | Video | TV-Talk Shows |
| Live with Murray Franklin TV talk show.

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| 21 | NCB  | BBB | Video | TV Stations |
| NCB TV Station in Gotham City.

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| 22 | Newart  | BBB | Entertainment | Movie Theaters |
| Newart Movie theater playing Strip Search movie.

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| 23 | Pogo's  | BBB | Nightlife | Comedy Clubs |
| Pogo's Comedy club where Arthur performs. Named after serial killer John Wayne Gacy, who entertained children as "Pogo the Clown".

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| 24 | Shine Beauty Hair Extensions and Wigs  | BBB | Retail | Beauty Supply Stores |
| Shine Beauty Hair Extensions and Wigs Store in Gotham City.

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| 25 | Strip Search  | BBB | Video | Adult Films |
| Strip Search Pornographic movie playing in Gotham City.

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| 26 | Stripe n' Stick  | BBB | Food | Candy |
| Stripe n' Stick What appears to be a chewing gum product, advertised on the subway.

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| 27 | Tommy's Wig | BBB | Retail | Beauty Supply Stores |
| Tommy's Wig Store in Gotham City visible during riot scene.
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| 28 | Typewriter Repair Shop  | BBB | Services | Repair Services |
| Typewriter Repair Shop Store in Gotham City.

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| 29 | WBC  | BBB | Video | TV Stations |
| WBC TV station in Gotham City.

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| 30 | WGC 2  | BBB | Video | TV-News |
| WGC 2 Local news team in Gotham City that reports on the death of Murray Franklin.

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| 31 | Wig & Jewelry  | BBB | Apparel | Jewelry Stores |
| Wig & Jewelry Store in Gotham City.

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| FICTITIOUS TIMELINE |
| 32 | November 2, 1952  | Dates | 20th Century: 50s | Events |
| November 2, 1952 Arthur Fleck's mother Penny, age 25 years old, admitted to Arkham State Hospital.

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| 33 | October 15, 1981  | Dates | 20th Century: 80s | Events |
| October 15, 1981 Joker begins on Thursday, October 15, with Arthur Fleck having his retail sign stolen, and then being beat up after chasing the guys that stole it.

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| MAKE BELIEVE MAP |
| 34 | 9th Avenue | Map | Transit Routes | Streets-Avenues |
| 9th Avenue Street in Gotham City.
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| 35 | Chuckle Town | Map | Urban Areas | Cities-Joke |
| Chuckle Town Joke Randall makes coming into work: Another day in Chuckle town.
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| 36 | Gotham City  | Map | Urban Areas | Cities-U.S. |
| Gotham City Setting.

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| 37 | Market Street | Map | Transit Routes | Streets |
| Market Street Street in Gotham City.
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| 38 | Wayne Manor  | Map | Structures | Mansions |
| Wayne Manor Arthur visits Wayne Manor, encountering a young Bruce Wayne.

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| 39 | Williams Street  | Map | Transit Routes | Streets |
| Williams Street Street in Gotham City.

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| OTHER |
| 40 | Arthur  | Other | Themes | 3-D |
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