The novel charts the history of the French invasion of Russia, and the impact of the Napoleonic era on Tsarist society, through the stories of five Russian aristocratic families. Newsweek in 2009 ranked it first in its Top 100 Books. In 2007, Time magazine ranked War and Peace third in its poll of the 10 greatest books of all time while Anna Karenina was ranked first. Tolstoy himself said that War and Peace was "not a novel, even less is it a poem, and still less a historical chronicle". Large sections, especially in the later chapters, are philosophical discussion rather than narrative. He also said that the best Russian literature does not conform to standards and hence hesitated to call War and Peace a novel. Instead, he regarded Anna Karenina as his first true novel. According to the Encyclopædia Britannica, "no single English novel attains the universality of Leo Tolstoy's War and Peace."