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How Long Have Humans Existed On The Cosmic Calendar?

This Is Why December 31 Is The Cosmic Calendar'S Most Important Date

How Long Have Humans Existed On The Cosmic Calendar?

The Cosmic Calendar | Cosmos: Possible Worlds

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When Did Humans Appear In The Cosmic Calendar?

In the Cosmic Calendar, which symbolizes the entire history of the universe, the Big Bang is represented as occurring at the very start, on January 1st, at the stroke of midnight. At this moment, we find ourselves at the culmination of this cosmic timeline, standing at midnight on December 31st. Now, let’s journey back in time to understand when humans first made their appearance in this grand cosmic narrative. If we imagine the cosmic year as a 365-day calendar, the first humans made their debut around 10:30 p.m. on December 31st. This means that in the vast expanse of cosmic history, humans have been part of the story for just a brief moment before the stroke of midnight on this symbolic cosmic New Year’s Eve.

How Long Is A Year On The Cosmic Calendar?

Have you ever wondered how to grasp the vast expanse of cosmic time in a way that’s relatable? Imagine compressing the entire 13.7 billion-year history of the universe into the framework of a single calendar year. In this cosmic calendar, the universe’s birth, the Big Bang, is like a grand fireworks display that lights up the skies on January 1 at the stroke of midnight. Fast forward to today, and we find ourselves on December 31, also at the stroke of midnight. However, this cosmic year is not measured in the familiar seconds we experience in our daily lives. Instead, each second on this calendar represents a staggering 434 years of cosmic evolution, providing a mind-boggling perspective on the immense timescales involved in the universe’s history.

Who Created Cosmic Calendar?

The concept of a cosmic calendar, which condenses the 13.8-billion-year history of the Universe into the span of 1 Earth year, was originally conceived by the renowned astronomer Carl Sagan. This fascinating analogy offers a unique perspective, with the inception of the Universe corresponding to the very first second of January 1 and the present day aligning just moments before the stroke of midnight on December 31. It provides a powerful tool for comprehending the immense timeline of cosmic events, offering us a glimpse into the staggering age and evolution of our universe. This concept was introduced by Carl Sagan, a visionary astronomer who made significant contributions to popularizing science and astrophysics. (Note: I’ve added some additional information about Carl Sagan and the significance of the cosmic calendar for a better understanding of the topic.)

Summary 43 How long have humans been around on the cosmic calendar

This Is Why December 31 Is The Cosmic Calendar'S Most Important Date
This Is Why December 31 Is The Cosmic Calendar’S Most Important Date
The Cosmic Calendar: History Of The Universe In Just 365 Days
The Cosmic Calendar: History Of The Universe In Just 365 Days
This Is Why December 31 Is The Cosmic Calendar'S Most Important Date
This Is Why December 31 Is The Cosmic Calendar’S Most Important Date

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The Cosmic Calendar | Cosmos: Possible Worlds
The Cosmic Calendar | Cosmos: Possible Worlds

It wasn’t until approximately 11:48 PM on the cosmic calendar, or about 300,000 years ago in actual time, that anatomically modern humans, Homo sapiens, arose for the first time. What we consider the crowning achievements of civilization all only happened in the final minutes of the cosmic calendar.On this Cosmic Calendar, the Big Bang happens on January 1st at midnight, and we are at the end of the year, midnight on December 31st. Now look backwards: Down here, the first humans made their debut around 10:30 p.m. on December 31st.The 13.7 billion year lifetime of the universe mapped onto a single year. At this scale the Big Bang takes place on January 1 at midnight, the current time is December 31 at midnight, and each second is 434 years.

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