Resources

Inflation Calculator, from the United States Department of Labor's Bureau of Labor Statistics:

http://www.bls.gov/data/inflation_calculator.htm

History of US postage rates:

http://about.usps.com/who-we-are/postal-history/rates-historical-statistics.htm

Area calculation on Google maps:

http://www.daftlogic.com/projects-google-maps-area-calculator-tool.htm

Helps find public records by state:

http://publicrecords.searchsystems.net/