I'm referring of course to Maize, Wheat, and Rice. What is it about this family that was so appealing for those picking out a plant to domesticate? Its not like they were in contact with each other and oculd be like "Yo, I picked Wheat and it rocks, you should pick Maize, its in the same family so I bet it'll be real good too" Esp considering I hear stories about how original wild maize had cobs no bigger than a finger, and it was only through the magic of selectively breeding that they became vast and bulbous like they are today.
don't sleep on that other grass genus Sorghum. doesn't get a lot of radio play in "the west", but a true O.G. co-evolved plant. grain sorghum for easily harvested seed/flour, forage sorghum for material and ruminant feed, sweet sorghum for that rarity in human history: sweet, sweet syrup.
a true triple threat only challenged by the freakish multi-tool of brassicas.
I've heard talk that preserved domesticated sorghum seed was found african tombs older than 18,000 b.c.