Linked from
The 10 pages that link to Futures contract, each with the reason it gives.
Commodity marketRelated: Commodity futures let producers and buyers set prices before delivery.
HedgingBroader topic: A futures position can offset the risk of a future purchase or sale.
Grain tradeRelated: Grain futures let producers and buyers lock in prices before delivery.
Commodity exchangeRelated: Futures are the central contracts traded on many commodity exchanges.
Tulip maniaRelated: Tulip traders made agreements for bulbs not yet ready to deliver.
Futures exchangeBroader topic: The exchange lists these contracts and defines their terms.