Graphical timeline of the Big Bang

This timeline of the Big Bang shows a sequence of events as currently theorized by scientists.

It is a logarithmic scale that shows $$10 \cdot \log_{10}$$ second instead of second. For example, one microsecond is $$10 \cdot \log_{10} 0.000 001 = 10 \cdot (-6) = -60$$. To convert −30 read on the scale to second calculate $$10^{-\frac{30}{10}} = 10^{-3} = 0.001$$ second = one millisecond. On a logarithmic time scale a step lasts ten times longer than the previous step.