Apparently it has been reaped and sowed since 8000BC. Following wheat, crops including barley, peas, lentils, bitter vetch, chickpeas and flax was subsequently cultivated.

And since I know you’re wondering, bitter vetch is a an ancient legume.

I learned about this fact from: http://www.historyworld.net/wrldhis/plaintexthistories.asp?historyid=ab56