Did you know? Mass of world gold production (2014) (2.99 million kg) is 2 thousand x Mass of an adult male Hippopotamus (1,500 kg)
Pop. of Tianjin, China (6.86 million people)
/fact/population-of-tianjin-china
"This is a fun and riveting book. Written in an accessible and engaging way, it is unputdownable." Frost Magazine
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Click here for Podcast: Andrew Elliott interviewed for New Books Network.