I have run into a problem with JFreeChart using the org.jfree.data.time.Day class which uses the org.jfree.date.SerialDate class from JCommon. The SerialDate class begins at 1900, but I need it to at least begin at 1800. Which classes do I need to modify to achieve this functionality or are there a few threshold parameters that I can modify to get dates that can go back as far as 1800?
Thanks.