1673-1731 1694-1757 1706-1785 1744-1804 18thcentury 1902-1977 congresses courtandcourtiers economicdevelopment economics festschriften foolsandjesters fröhlich gametheory general germany gundling history jacobpaul joseph mathematical mathematicalmodels oskar performingarts peter prosch salomonjakob sociallifeandcustoms theater time-seriesanalysis