The 1907 Romanian Peasant Rebellion
Chirot data frame has 32 rows and 5 columns.
The observations are counties in Romania.
Chirot, D. and C. Ragin (1975) The market, tradition and peasant rebellion: The case of Romania. American Sociological Review 40, 428--444 [Table 1].
Fox, J. (1997) Applied Regression, Linear Models, and Related Methods. Sage.