Timeline

Stan holding up a 2012 calendar.

This is a timeline of events in Gravity Falls. The entire series takes place in the Summer of 2012, specifically between the time period of May-June 1st, 2012 to September 1st, 2012.

Timeline

Date	Event	Source
c. 1 trillion BCE	Bill Cipher is trapped in his own decaying dimension.	"Weirdmageddon Part 1"
c. 1 billion BCE	Weirdmageddon is prophesied.	"Dipper and Mabel vs. the Future"
c. 65 million BCE	Dipper and Mabel travel back in time and are nearly eaten by a dinosaur.	"The Time Traveler's Pig"
c. 30 million BCE	The Flying saucer crashes into Earth, forming the valley of Gravity Falls.	Gravity Falls: Journal 3
c. 1000 CE	Gravity Falls' indigenous population evacuates the valley under fear of the land being cursed, leaving pottery, blankets, and remnants of their language behind. In Journal 3, Ford mentions that some of their art has his muse, Bill Cipher, on it.	Gravity Falls: Journal 3
1837	Quentin Trembley wins the United States of America presidential election in a literal landslide.	"Irrational Treasure"
June 18, 1842	8½th United States President Quentin Trembley discovers the valley of Gravity Falls and subsequently founds the town.	"Irrational Treasure"
1850	Gravity Falls experiences a lesser-known "Flannel Rush" following the Gold Rush.	Gravity Falls: Journal 3
1851	Miners in the valley claim sightings of "prehistoric beasts", causing the mines to grow abandoned.	Gravity Falls: Journal 3
1862	Mabel and Dipper travel back in time by 150 years. Fertilia and her family travel on the Oregon Trail. Nathaniel Northwest is deemed the founder of Gravity Falls, and tricks the townspeople into building the Northwest Manor on the false promise of allowing them into their annual party.	"The Time Traveler's Pig", "Northwest Mansion Mystery"
1863	Construction of Northwest Manor is completed, and the townsfolk and lumberjack involved in its construction are denied entry to the first Northwest Fest. The head lumberjack, Archibald Corduroy, subsequently dies in the Great Flood, moments after cursing the Northwest Family.	Gravity Falls: Journal 3
1883	To escape imprisonment, Blendin Blandin travels back in time to live as a 19th century pocket watch repairman, inadvertantly instigating the Great Train Crash of '83 by distracting a passing train conductor with his time machine.	Gravity Falls: Journal 3
1885	The birth of someone who is eventually buried in Gravity Falls Cemetery. (Died 1959)	"The Love God"
1908	The birth of someone who is eventually buried in Gravity Falls Cemetery. (Died 1972)	"The Love God"
1909 or 1910	Eustace Huckabone Befufftlefumpter is born.	"Northwest Mansion Mystery"
1920	Gravity Falls' current mayor places a prohibition on maple syrup, leading to the creation of Pancake Speakeasies by town residents.	Gravity Falls: Journal 3
1937	Amelia Earhart allegedly escapes into the Gravity Falls forests following the crashing of her plane into the surrounding mountains.	Gravity Falls: Journal 3
1947	An unidentified flying object heading east is sighted over the town, and Sprott's father claims to have shot it with his shotgun.	Gravity Falls: Journal 3
June 15, Late 1940s - early 1950s	Twin brothers Stanley and Stanford Pines are born in Glass Shard Beach, New Jersey.	Gravity Falls: Journal 3, "A Tale of Two Stans"
1959	The death of someone who is eventually buried in Gravity Falls Cemetery. (Born 1885)	"The Love God"
Late 1950s – early 1960s	Filbrick Pines enrolls his sons in boxing lessons to teach them self-defense against bullies.	"Dreamscaperers"
Early 1960s	Stan and Ford start rebuilding an old ship they found in a cave. Train parts are salvaged from the Great Crash wreckage and are used to house the Greasy's Diner restaurant.	"A Tale of Two Stans", Gravity Falls: Journal 3
Early – mid 1960s	The events of "Pine Bros Mystery" take place.	Gravity Falls: Lost Legends
Late 1960s – early 1970s	Stan's boxing skills help him save Carla McCorkle from a robbery. Their relationship takes off.	"Dreamscaperers"
1970	Carla leaves Stan for Thistle Downe.	"Boyz Crazy"
Early 1970s	The Pines family disowns Stanley after his accidental destruction of Stanford's science project costs them potential millions. After being rejected from West Coast Tech, Ford enrolls in Backupsmore University.	"A Tale of Two Stans"
1971	The death of someone who is eventually buried in Gravity Falls Cemetery (who was born in 1889).	"The Love God"
1972	The death of someone who is eventually buried in Gravity Falls Cemetery (Born 1908)	"The Love God"
1972–1983	Stan Pines, now a drifter, tries his hand at solo treasure hunting. It goes about as well as could be expected. After Ford arrives in Gravity Falls and after his lab is built, Dipper and Mabel time travel; ending up in front of the Mystery Shack and almost getting seen by Ford. Stan travels in and out of the United States in this time as a salesman and moderately successful conman. Among his lineup are the "Shammy," the "Rip-Off," and the "Stan-Vac." He also goes to prison at least 3 times.	"A Tale of Two Stans", "The Time Traveler's Pig"
c. 1973	Ford is accepted into a doctoral program three years ahead of schedule. He receives a research grant of $100 thousand, for use in the field of his choice.	"A Tale of Two Stans"
1974	Dungeons, Dungeons, and More Dungeons is copyrighted. Some time after its release, Ford acquires the game and Stan makes fun of him for playing it. (Note: this is seemingly inconsistent with other dates regarding Stan and Ford's history found in Journal 3.)	Gravity Falls: Journal 3
1975	Ford arrives in and begins to research Gravity Falls. He documents his findings in Journal 1.	"Tourist Trapped", "A Tale of Two Stans", Gravity Falls: Journal 3
1979 or 1980	Ford finds the cave drawings that depict Bill Cipher and summons him, hoping he will give him the answers to the mysteries of Gravity Falls. Ford and Bill become partners and start work together. (Note: this is a guess based on Ford's statement that "two years ago I experienced a miracle." He later states that the "Discovery of Muse" took place in 1981. This could simply mark the date that they chose to work together.)	"The Last Mabelcorn", Gravity Falls: Journal 3
June 18, 1981	Ford begins to write Journal 3, six years since the beginning of his research on Gravity Falls.	"Tourist Trapped", Gravity Falls: Journal 3
August 3, 1981 - July 17, 1982	Ford begins his investigation on the Northwests, as well as the Great Flood of 1863, spends two nights in Manly Dan's cabin and receives the blueprints for the portal from Bill.	Gravity Falls: Journal 3
July 18, 1982	Ford asks Fiddleford McGucket to visit him in Gravity Falls, to help him with building the portal.	Gravity Falls: Journal 3
July 29, 1982 - January 16 1983	McGucket arrives in Gravity Falls. Ford and McGucket take a several day long hike to scavenge technology from Crash Site Omega, discovering several new oddities along the way. On their way back into town, McGucket is captured by the Gremloblin. Haunted by this experience, McGucket creates the Memory Gun. Ford and McGucket visit a carnival, and the Hand Witch tells Ford's future. McGucket begins the construction of the bunker. Ford discovers the Shapeshifter while excavating, and begins to experiment on him. Eventually, they have to freeze him, after attacking McGucket. Ford allows Bill to take over his body whenever he so pleases.	Gravity Falls: Journal 3
January 17, 1983	McGucket asks Ford not to continue on with his plan to activate the project, and instead publish his already existing research. Ford declines.	Gravity Falls: Journal 3
January 18, 1983	Ford and McGucket test the portal. Due to an accident, Fiddleford gets sucked into it and reveals there is a nightmare realm on the other side, but Ford rescues him. This incident causes McGucket to quit the project.	Gravity Falls: Journal 3, "A Tale of Two Stans", "Society of the Blind Eye"
c. February 11, 1983	McGucket comes up with the idea for the Blind Eye Society 22 days after using his memory erasing gun on himself to remove the memory of what he saw in the portal. His mind is already showing slight signs of damage due to repeated use of the memory gun.	"Society of the Blind Eye"
1983	Fiddleford McGucket’s mind continues to degrade and he recruits people into his cult. Ford grows increasingly paranoid about Bill, and shuts down the portal. He begins writing in invisible ink. Eventually, Ford sends Stan a postcard, and hopes that with his help, he can hide the journals. After a fight with his brother, Ford is sucked into an alternate dimension. Stan Pines starts running the Mystery Shack. The Government takes notice of some odd readings in Gravity Falls, Oregon.	"A Tale of Two Stans", "Scary-oke", "Society of the Blind Eye"
c. July 25, 1983	McGucket’s continued mental and physical deterioration is further compounded by getting hit by a car. He gains the cast and bandage he wears up to the present day.	"Society of the Blind Eye"
c. October 17, 1983–September 27, 1984	McGucket moves into a motel, steals his signature hat from a scarecrow, and is found disoriented outside the Gravity Falls Museum of History with no memory of his previous life.	"Society of the Blind Eye"
July 13, 1990	Jesus "Soos" Alzamirano Ramirez is born.	"Blendin's Game"
1991	The controversial 1991-1992 edition of Dungeons, Dungeons, and More Dungeons is released.	"Dungeons, Dungeons, and More Dungeons"
1990–95	Jeffy Fresh, Byrone, and Rosie are living in Gravity Falls. (Note: these three also show up as background characters following Ford’s disappearance in "A Tale of Two Stans" looking the same as when they give the Duskertons heart attacks in "Summerween", despite the two events being separated by over ten years.)	"The Inconveniencing," "Summerween"
May 2, 1995	Ma and Pa Duskerton die, assuming the newspapers weren't replaced after their death.	"The Inconveniencing"
May 1997	Wendy Corduroy is born.	"Double Dipper"
1997	There is a costume store in the area the Mystery Shack is located, possibly part of the Mystery Shack itself.	"The Time Traveler's Pig"
1998–99	Marius von Fundshauser is born.	"Northwest Mansion Mystery"
August 31, 1999	Twins Mabel and Dipper Pines are born.	"The Inconveniencing," "Dipper and Mabel vs. the Future"
June – July 2002	Gideon Gleeful is born.	"Blendin's Game"
July 13, 2002	Dipper & Mabel time travel. Soos turns twelve, and comes to the realization that his father is not coming back to see him. Soos begins to work at the Mystery Shack.	"Blendin's Game"
2002	The wax figures are put into storage.	"Headhunters," "Blendin's Game"
October 10, 2006	Dipper and Mabel are in 2nd grade. There is photo day at their school.	"Weirdmageddon 2: Escape From Reality"
c. 2009	Mabel wins first place in a junior mini-golf competition. Robbie gets his hoodie in 7th grade.	"The Golf War", "Weirdmageddon 3: Take Back The Falls"
c. February 14, 2009	Dipper and Mabel are in fourth grade. Dipper doesn't get any Valentines and gets teased. However, Mabel gives him some of her Valentines.	"Weirdmageddon 2: Escape From Reality"
≈2011	Soos predicts Duck-tective to have a secret twin brother.	"Dungeons, Dungeons, and More Dungeons"
May-June 1st, 2012	Dipper discovers Journal 3.	Gravity Falls: Journal 3
June 1–3, 2012	The latter events of "Tourist Trapped" and the events of "The Legend of the Gobblewonker" take place.	Gravity Falls: Journal 3
June 7, 2012	The Unveiling of the Wax Museum of Mystery takes place.	"Headhunters," Gravity Falls: Journal 3
June 8-9, 2012	The latter events of "Headhunters" take place. Dipper chases Wax Larry King's head in the vents.	"Headhunters," Gravity Falls: Journal 3
June 10-13, 2012	The events of "The Hand that Rocks the Mabel" take place.	Gravity Falls: Journal 3
June 13-14, 2012	The events of “The Inconveniencing“ and “Dipper Vs Manliness” take place.	Gravity Falls: Journal 3
June 14-18, 2012	The events of "Double Dipper" and "Irrational Treasure" take place.	Gravity Falls: Journal 3
June 16, 2012	Opening day of Pony Heist. The Pines and Soos go to the movies.	"Mabel's Scrapbook: Heist Movie"
June 20, 2012	Dipper takes a closeup photo of Stan's partial tattoo.	"Stan's Tattoo"
June 18-21, 2012	The events of "The Time Traveler's Pig" through "Little Dipper," Rumble's Revenge and PinesQuest take place.	Gravity Falls: Journal 3
June 22, 2012	Gravity Falls celebrates Summerween, and the events of "Summerween" occur.	"Summerween"
June 23, 2012	Dipper takes a photo of Stan's back and partial tattoo. Stan notices.	"Stan's Tattoo"
June 25, 2012	Dipper takes another photo of Stan's back and partial tattoo.	"Stan's Tattoo"
July 3, 2012	The due date for TK618 to be returned to the Gravity Falls Library.	"Stan's Tattoo"
July 6-11, 2012	The events of "Boss Mabel" through "Land Before Swine" take place.	Gravity Falls: Journal 3
July 11-15, 2012	Stan steals a dinosaur egg and it hatches at the shack.	Gravity Falls: Journal 3
July 13, 2012	The events of "Blendin's Game" take place. (Note: due to a continuity error, this episode is said to take place on different dates in Journal 3.)	"Blendin's Game"
July 15-21, 2012	The events of "Dreamscaperers" through "Scary-oke" take place.	Gravity Falls: Journal 3
July 21-23, 2012	The events of "Into the Bunker" take place.	Gravity Falls: Journal 3
July 23-July 29, 2012	The events of "The Golf War" through "Soos and the Real Girl" take place. (Note: due to a continuity error, "Sock Opera" is said to take place on different dates in the series and in Journal 3.)	Gravity Falls: Journal 3
July 29-August 22, 2012	The events of the episodes "Society of the Blind Eye" through "Roadside Attraction" take place, as well as the comic stories "Face It" and "Comix Up". (Note: due to a continuity error, "Blendin's Game" is said to take place on different dates in the series and in Journal 3.)	Gravity Falls: Journal 3, Gravity Falls: Lost Legends
August 24, 2012	The events of "Dipper and Mabel vs. the Future" take place.	"Dipper and Mabel vs. the Future"
August 24 – 25, 2012	Weirdmageddon takes place.	"Weirdmageddon Part 1," "Weirdmageddon 2: Escape From Reality," "Weirdmageddon 3: Take Back The Falls"
August 25, 2012	The town starts recovering from Weirdmageddon. The Mystery Shack gets reconstructed. Stan recovers his memories with the help of Mabel's scrapbook and old home movies of Ford and Stan's childhood. Soos finds the Journals in the woods unharmed.	Gravity Falls: Journal 3
August 27 - 29, 2012	Chamelius Pendraggin traps Dipper in his Hue-Collecting Tome and asks Mabel to make and color drawings, resulting in the world losing its colors.	Don’t Color This Book! It's Cursed!
August 29, 2012	The events of "Don't Dimension It" take place.	Gravity Falls: Lost Legends
August 31, 2012	Dipper and Mabel celebrate their 13th birthday with all of the townsfolk at the Mystery Shack, Stan Pines retires and gives ownership of the Mystery Shack to Soos. The family decides to throw the journals into the Bottomless Pit.	"Weirdmageddon 3: Take Back The Falls," Gravity Falls: Journal 3
September 1, 2012	Dipper and Mabel leave Gravity Falls for Piedmont, California.	"Weirdmageddon 3: Take Back The Falls"
3012	The predicted end of the world. Time Baby is expected to be revived.	"Mailbox"
207̃012	The year Blendin Blandin is from. Blendin is sent to Infinetentiary, then escapes. He invokes Globnar against the Pines twins. In Journal 3 this year is written as 207̃12 on 3 different pages (probably due to a typo).	"The Time Traveler's Pig," "Blendin's Game", Gravity Falls: Journal 3

Trivia

• The film about Quentin Trembley states he was elected in 1837 as the 8½th president of the United States, but there were no presidential elections in 1837. In 1840, Trembley's alleged replacement William H. Harrison (who had lost in 1836) defeated then-President Martin Van Buren's bid for reelection and became the ninth President of the United States.
• The credits cipher from "Weirdmageddon Part 1," says that Time Baby's particles will take 1000 years to reform, and, because the show takes place in 2012, this would happen in 3012, the same year predicted by the mailbox as the end of the world. Also, in "The Time Traveler's Pig" episode Dipper and Mabel travel in the future and they see Time Baby destroying the world. Mabel states that the future looks awesome.
• "Blendin's Game" takes place on July 13th, Soos' birthday, in the series, but in Journal 3 the events of this episode are said to happen sometime between July 23rd and August 22nd.
• Dipper and Mabel have raced against a space lizard somewhere in their three months staying at Gravity Falls. It is unknown when this event actually took place.