This photo was taken in Cumberland Cemetery in Lima, PA.  This tombstone serves as an excellent example of a source for interdisciplinary studies for students.  Students studying Earth science can examine the rock type of the tombstone.  Biology/Life Science students can look at the dates of birth and death to examine human lifespan and longevity.  History students can look at the symbols and their meaning - in this case, the ship and date 1620 means that one of the people buried at this site is a descendent from someone that came over on the Mayflower.  Search the PAESTA Classroom for an exercise relating to a tombstone investigation with students.