What if African rice somehow spread throughout the continent - and possibly beyond it - before Asian rice came to Africa? How might this impact history?
https://en.m.wikipedia.org/wiki/Wild_rice
Could a succesful civilisation form around wild rice agriculture? It was (and still is) a common food source for groups like the Ojibwe and is now grown as a food source in North America.
What other plants could this civilisation grow? Bulrush?
