Time since the end of the Silurian geologic period

Time since the end of the Silurian geologic period (419 million y)

/fact/time-since-the-end-of-the-silurian-geologic-period

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If Time since the end of the Silurian geologic period (419 million y) was a standard unit ...

Time since the emergence of multicellular life (2.1 billion y)...more would be 5 x Time since the end of the Silurian geologic period
Age of oldest musical instrument (42,000 y)...more would be 1/10000 of Time since the end of the Silurian geologic period