Pecuron world

Lead is mainly used for Pencil.Pencil is more helpfull for students.The Romans,Greeks and Egyptians used a small lead disc for writing and drawing guidelines on the papyrus to keep the lettering even and for nice presentation.The Romans called it a plumbum-Latin for lead.Soon after,a thin rod of lead began to be used for drawing fine lines.The wood casing came later.Pencils today have no lead in them-the 'lead' is made of a mixture of clay and powdered core of graphite.Lead is used not only for this,it is also used for futher purpose.