Did you know?
Time since the birth of Diophantus (1,810 y) is about as big as Time since the building of Great Wall of China (1,800 y)
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Length of the longest canal tunnel (Rove Tunnel in France) (7.12 km)
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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Click here for Podcast: Andrew Elliott interviewed for New Books Network.