a commonly drawn distinction (主语)
is （谓语）
between pre-history ,i.e. the period before written records -and history in the narrow sense, （地点状语）
meaning the study of the past using written evidence.（分词结构做定语,修饰history）
pre-history ,i.e. the period before written records -------,i.e是插入语, the period before written records是pre-history 的同位语