Sort:  
 last year 

👎 You're around the right time period. Although the book being referenced here wasn't published in English until a couple of years after the original version.

Coin Marketplace

STEEM 0.05
TRX 0.32
JST 0.082
BTC 62816.13
ETH 1674.13
USDT 1.00
SBD 0.41