Did you know? Mass of dwarf planet Makemake (4.4 sextillion kg) is 4 x Mass of Dione (moon of Saturn) (1.095 sextillion kg)
Age of the earliest city (6,500 y)
/fact/age-of-the-earliest-city
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If this was a standard unit ...
"This is a fun and riveting book. Written in an accessible and engaging way, it is unputdownable." Frost Magazine
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