Random quote: "Those who cannot remember the past are condemned to repeat it." George Santayana (1863 - 1952), The Life of Reason, Volume 1, 1905 - (Added by: Tomas Baranauskas)
I think it is one of more extensive free online English articles on the history of Lithuania. It covers the entire history from prehistory to the modern times. Illustrations and some maps are also avaiable.