https://www.cnbc.com/2017/11/02/bitcoin-futures-mirror-1637-tulip-bubble-crash-ubs.html

CME Group announced plans for bitcoin futures contracts earlier this week, a move that UBS analyst Paul Donovan has compared to the introduction of a similar product just before the tulip bubble burst in the 1600s.

The tulip craze in the Netherlands in the 17th century saw the price of the flower skyrocket. This resulted in a crash of that market in 1637.