Cosmic Calendar

Cosmic Calendar is a summary of the history of the universe with an age of 13.8 billion years to be a year. In this calendar, the Big Bang occurred at the beginning of January 1st, and the present is summarized at the end of December 31st. On this scale, every second equals 438 years, each hour equals 1.58 million years, and each day equals 37.8 million years. The concept popularized by Carl Sagan in his book, The Dragons of Eden, and his television series, Cosmos. In the sequel of 2014, Cosmos: A Spacetime Odyssey, host of Neil deGrasse Tyson uses the same Cosmic Calendar concept but its natural age should be revised to 13.8 billion years, improving the 15 billion years Sagan presented in 1980. Sagan also makes a comparison with surface area. He explained that if the Cosmic Calendar is stretched the size of a football field, then "the whole of human history is only as wide as the palm of the hand".

here is a story about the history of the universe, from the last stage of inflation and Big Bang to this day, solidified into a year, more or less will look like the picture below:

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