Poland is a historical novel written by James A. Michener and published in 1983 detailing the times and tribulations of three Polish families (the Lubonski family, the Bukowski family, and the Buk family) across eight centuries, ending in the present day (1981).

The book, written in an episodic format, tells the story of three families and the many generations of each family throughout the history of Poland. The three families (Buk, Bukowski, and Lubonski) are fictional as are the other characters in the book. The plot, however, takes place throughout the history of Poland and contains many historic people. The events are largely real events in which the fictional characters interact. The book spans over seven hundred years.
Source: http://en.wikipedia.org/wiki/Poland_(novel)