The Cosmic Calendar

The Cosmic Calendar

The Cosmic Calendar is a method used to visualize and better understand the timeline of the universe. Midnight, January 1st, is when the Big Bang occurred, and December 31st, 23:59:59, is modern time. On the Cosmic Calendar, the early development of the universe ranged from January 1st to September 6th and the first known biotic life on Earth formed on September 14th. Dinosaurs lasted from December 25th to December 30th, 6:24. What is very interesting is the existence of primitive humans, starting on December 31st, 22:24, with the development of agriculture on 23:59:32. From this point on, from the end of the Ice Age to the start of Modern History, our history has lasted for less than 30 seconds on the Cosmic Calendar. Dinosaurs roamed the Earth for 5 days on the Cosmic Calendar, significantly more time compared to our short 7 seconds since the Iron Age. Despite the short while we have existed, we have discovered, learned, and created so much that has impacted Earth and the species on it in significant ways, for better or for worse.

5 thoughts on “The Cosmic Calendar

  1. I really like how you took the descriptive graphic and delineated in text the significant parts of the Cosmic Calendar. It definitely stuck out that life on Earth didn’t start developing until September 14th — I just can’t believe that it took roughly 3/4 of Earth’s lifespan for life to begin. It also stuck out to me juxtaposing how dinosaurs lasted five days while we’ve only been around for seven seconds — it’s astonishing how much time other organisms have lived on Earth compared to our short existence. But, at least we’ve made our time on Earth thus far count!

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  2. Wow, it’s really interesting to see how humans have barely existed in the timeline of the universe! It really puts perspective of how humans have greatly modified and impacted the Earth despite our relative insignificance in terms of our time in the universe.

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  3. Wow, it’s really interesting to see how humanity has barely existed in the eyes of the universe! It puts a lot of perspective in how much humans have impacted the Earth despite our relative insignificance to the age of the universe.

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  4. The comparison of the time span of dinosaurs vs. humans on earth really made me think about the impact that humans have had so far despite our comparatively short time on Earth. It is interesting to think about how much more humanity will continue to learn and impact the Earth throughout time.

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  5. From the TA: The Cosmic Calendar is definitely a interesting tool to put our time on Earth into perspective. I think it would also be interesting to see other cosmic events, such as the first stars forming, formation of super clusters of galaxies, etc on this sort of time scale.

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