Zhihu Daily
Latest recorded position: #29 on Aug 9, 2026, 8:27 AM CST.
There are not enough retained observations to calculate a rank change.
If Corn Isn't a Staple Food, How Did It Become One of the World's Top Three Grain Crops?
玉米不能当饭吃，怎么成为了世界三大粮食作物之一？
ThreadEast first recorded "If Corn Isn't a Staple Food, How Did It Become One of the World's Top Three Grain Crops?" on Aug 1, 2026, 8:26 PM CST. It has been observed on Zhihu Daily, with 7 days between the first and latest recorded appearances.
What the trend data tells us
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Original evidence
Source listings
#29Last observed rank
Original source