1686 Robert Plot scientist at Oxford finally concluded that some crop circles in Staffordshire (The natural history of Staffordshire) were caused by lightning.
1686 Robert Plot mwanasayansi katika Oxford hatimaye alihitimisha Hiyo duru baadhi ya mazao katika Staffordshire (Historia Mtindo wa Staffordshire) walikuwa Husababishwa na umeme.