Source: wikibot/cosmic-calendar
= Cosmic Calendar
{wiki=Cosmic_Calendar}
The Cosmic Calendar is a conceptual representation that compresses the history of the universe into a single year, providing a visual and temporal framework for understanding the vast timescales of cosmic events. It was popularized by astronomer Carl Sagan in his book "Cosmos". In this model, the entire 13.8 billion-year history of the universe is scaled down to a single year, where: - The Big Bang occurs at midnight on January 1st.