This is a chronological list of events that happened or were mentioned in the series. Note that dates marked with "circa" are approximate, not exact.
BC[]
- Circa 400 million BC: Cheesecake, Jr.'s soul is born. It inhabits its first life in a primitive fish.
- Circa 70 million BC: Troodon, Cheesecake Jr.'s ancestral species, develops and roams during the age of dinosaurs. Cheesecake Jr. lives a very significant reincarnation at this time.
- Circa 65.5 million BC: Extinction of most - but not all - nonavian dinosaurs. The survivors will evolve into dinosaur-people.
- Circa 2 million BC: CJ's ancestor discovers art, but an ancestor from another generation ends up destroying it. Meanwhile, other relatives of his search for insects.
- Circa 20,000 BC: Kigku Junku lives. His father Kigku Sejjor unsuccessfully invents many new inventions ranging from the bow-and-arrow (his only successful invention) to the television (which is just a rock that carries amber with flippable drawings on it).
- Circa 8000 BC: Cheesecake's Neolithic ancestors live.
- Circa 300 BC: CJ's Chinese ancestors develop more unsuccessful - but more advanced - inventions.
Year 0 to 1500[]
- 3 BC - 45 AD: Carlius Williamsicus the Second lives in the Roman Empire.
- Circa 980 AD: Founding of Suchishire, the first successful Dinosaur City. Its name means "City of Crocodiles."
- Circa 1115 AD: Cheesecake, Jr. arrives in the past and meets the king of England, while getting a taste of the nobleman's life.
- 1200 AD: Suchishire reaches its peak power, with modern political rights, advanced medicine, and even a high literacy rate. It is dubbed "the most advanced city in Europe".
- Circa 1210 AD: Charles of Suchishire lives. With one of his father's potions, he is able to travel around the world and discover new land. He keeps it a secret.
- Circa 1250 AD: The city of Deining, China is invaded by Jenghis Khan.
- 1400s AD: Cheesecake, Jr.'s ancestors live in Italy and are merchants.
1500 to 1800[]
- 1502-1569: Al-seejay lives in the Ottoman Empire.
- Circa 1600: Suchishire is abandoned. CJ's ancestors move to the American colony of Virginia, where many of them will stay.
- 1735: George Russel is born.
- 1757: Cheesecake, Jr.'s great-great-great-great-great-great-great-great-great-grandfather George Williams is born.
- 1777: George Russel and his followers are expelled from the eastern Virginia colony during the American Revolution, so they move west.
- 1779: Dinosaur City is founded as an army fort.
- 1780: Dinosaur City is turned into an actual city, and is named "Reptopolis" after the large dinosaur-person population.
- 1797: George Russel is killed, and a 250-year policy is put in place, that no humans are allowed to visit or even know about the city.
1800 to 1900[]
- 1820: Cheesecake, Jr.'s great-great-great-great-grandfather lives in Vienna. He is another unsuccessful inventor.
- Circa 1840: Dinosaur City's population reaches 100.
- 1848: Cheesecake, Jr.'s great-great-great-grandfather, "Chuck the Kid" is born in Austria-Hungary.
- 1852: Chuck moves to the United States.
- 1859: The city refuses to capture any slaves caught in the city.
- 1862: Chuck the Kid fights against the notorious Reptopolis Jack.
- 1863: West Virginia splits away from the rest of Virginia. The city is now in West Virginia.
- 1864: Another ancestor of Cheesecake, Jr., Willowtree Williams, serves in the Civil War.
- 1877: Dinosaur City is the first to use electricity.
- 1890: Cheesecake, Sr.'s fashion sense goes out of style.
- 1897: A car is built this time. 113 years later, it is given to Cheesecake, Sr. for $50.
1900 to 1950[]
- 1902: Vrank Krena is born in Austria-Hungary.
- 1915: Vrank moves to America.
- 1920s: Vrank is a popular tennis star.
- 1925: Cheesecake, Jr.'s great-grandfather Bob Williams, Sr. is born.
- 1930s: Dinosaur City thrives during the Great Depression. Root beer is popular, and electric lights brighten up the city.
- 1939: The lights are dimmed and new regulations are made to follow the 250-year policy.
- 1943-1945: Vrank Krena serves in World War 2 but breaks his ankle during the war.
1950 to 1970[]
- April 1950: Bob Williams, Jr. (CJ's granfather) is born in Minnesota.
- 1957: Bob gets obsessed with space travel and builds model spaceships.
- 1960: The Dinosaur City Museum is built.
- 1960s: Vrank returns to Czechoslovakia.
- 1967: Bob gets a job working at a mess hall.
1970 to 1980[]
- 1974: Bob has his first child, Carl Williams. Later, in another timeline, CJ accidentally causes Bob to divorce with his wife Anne Williams.
- 1974: Bob becomes a disco-dancer.
- 1977: Cheesecake, Sr. is born.
- 1978: Cathy is born.
1980 to 1990[]
- 1980: This is the time when Bob Williams, Sr. thinks the comic first started. This is untrue.
- 1984: Cheesecake, Sr. becomes interested in video games, and often visits the Dinosaur City Video Arcade.
- 1986: Bob Williams, Sr. falls into a pit of depression when his favorite music is finally unpopular and his age begins to catch up with him.
- 1988: Cathy buys a video game system, and begins to like it.
1990 to 2000[]
2000 to 2010[]
2010 to 2013[]
2013 to 2200[]
- 2017: Cheesecake, Jr. goes into politics. His first campaign is for mayor of Dinosaur City.
- 2020s: Cheesecake, Jr. marries Melissa. He then has a child named Cheesecake III. Michael lives on a moon base.
- 2040: Cheesecake, Jr. successfully wins the presidential election.
- 2047: The 250-year policy is now void. Humans are allowed to come into and out of Dinosaur City as they please.
- 2053: Young Cheesecake, Jr. arrives in World War 3.
- 2060: Cheesecake, Sr. dies.
- 2093: Cheesecake, Jr. dies.
- 2097: Original proposed date of World War 3, as seen in Cheesecake, Jr. in The Future. Minnesota is said to have seceded from the United States by this point.
- 2113: Young Cheesecake, Jr. arrives in the future again, meeting his future great-grandson.
2200 onward[]
- 2270: Proposed birth date of John Williams.
- 2302: The forwards time machine is patented.
- 2311: At this point, the earth is much colder, and Dinosaur City is a futuristic wonderland. Cheesecake, Jr. and his friend Ron Hinkleton arrive at this point and meet John Williams, Cheesecake, Jr.'s great-great-great-great-great-great-grandson. However, CJ's time machine is destroyed by John the Dilophosaur, and CJ is chased by him. The duo of CJ and Ron disappear after this point.
- 2312: John goes on a space adventure, and CJ rearrives. They end up opening a portal to a universe where Earth is ruled by dinosaur-people.
- 2414: CJ arrives in World War 4.
- 6000: All the cities in the world are destroyed by a war with post-atomic age weapons.
- Circa 10,000: CJ again arrives in the distant future.
- Circa 540,000 AD: CJ arrives in the middle of an ice age, and nearly freezes to death. He then travels in time again.
- Circa 60 million AD: CJ notices that ostrich-people rule the Earth.
- Circa 200 million AD: CJ arrives. By now, West Virginia is a desert.
- 1 billion AD: CJ arrives in a future with completely unfamiliar vegetation and strange sentient species.
- 4 billion AD: CJ makes another arrival.
- 4.8 billion AD: Earth is destroyed.
- 5 billion AD: A new star is formed where the sun was, and causes new planets to form.
- 11 billion AD: At this point, a new planet has formed an is inhabited by "fish-chip" people who can master backwards time travel.
- 300 quadrillion AD: The end of the universe.