![cover image](https://wikiwandv2-19431.kxcdn.com/_next/image?url=https://upload.wikimedia.org/wikipedia/commons/thumb/e/ed/WMAP_2012.png/640px-WMAP_2012.png&w=640&q=50)
Graphical timeline of the Big Bang
Logarithmic chronology of the event that began the Universe / From Wikipedia, the free encyclopedia
Main article: Chronology of the universe
This timeline of the Big Bang shows a sequence of events as currently theorized by scientists.
It is a logarithmic scale that shows second instead of second. For example, one microsecond is
. To convert −30 read on the scale to second calculate
second = one millisecond. On a logarithmic time scale a step lasts ten times longer than the previous step.
![](http://upload.wikimedia.org/wikipedia/en/timeline/p6hvi44tl1o9s128kfotd30s3guxz55.png)