"Translating" Hebrew dates

Originally I had brought this book with me to Lubaczow in order to "translate" the Hebrew dates into general dates. 

The book only covered the years from 1900 onwards, so  for the years before that I had a problem.


Stephen M. Morse from San Francisco has created a wide range of helpful tools for genealogists.

One of these he calls  
Deciphering Hebrew Tombstone Dates in One Step 
http://stevemorse.org/jcal/tombstone.html

Thank you, Steve Morse!