If Time since the end of the Paleogene geologic period (23 million y) was a standard unit ...
Time since the start of the formation of the Solar System (4.6 billion y)...more would be 200 x Time since the end of the Paleogene geologic period
Age of the Earth (4.54 billion y)...more would be 200 x Time since the end of the Paleogene geologic period
Time since the end of the Pleistocene geologic epoch (11,700 y)...more would be 1/2000 of Time since the end of the Paleogene geologic period
Time since the earliest farming (11,500 y)...more would be 1/2000 of Time since the end of the Paleogene geologic period
Time since building of the Great Pyramid of Giza / Cheops / Khufu (4,580 y)...more would be 1/5000 of Time since the end of the Paleogene geologic period
Time since the birth of Archimedes (2,300 y)...more would be 1/10000 of Time since the end of the Paleogene geologic period
Time since the birth of Eratosthenes (2,299 y)...more would be 1/10000 of Time since the end of the Paleogene geologic period
Read all about it!
Is That a Big Number? - the book - is now available from all good booksellers.
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