“Almost all the plants we use in agriculture today were domesticated before historical times.” Seed deposits contain “a record of more than ten thousand years of human experience with crops.”
Abstract available from: http://www.newyorker.com/reporting/2007/08/27/070827fa_fact_seabrook.
Image available from: http://news.bbc.co.uk/2/hi/science/nature/6335899.stm.