Leo Tolstoy then spent much of his time in Moscow, Tula and Saint Petersburg, leading a lax and leisurely lifestyle. He began writing during this period, including his first novel "Childhood", a fictitious account of his own youth, which was published in 1852. In 1851, after running up heavy gambling debts, he went with his older brother to the Caucasus and joined the army. Tolstoy served as a young artillery officer during the Crimean War and was in Sevastopol during the 11-month-long siege of Sevastopol in 1854–55, including the Battle of the Chernaya. During the war he was recognised for his bravery
Leo Tolstoy and just becoming an activist. Tolstoy's letter was significant for Gandhi, who wrote Tolstoy seeking proof that he was the real author, leading to further correspondence between them. Reading Tolstoy's "The Kingdom of God Is Within You" also convinced Gandhi to avoid violence and espouse nonviolent resistance, a debt Gandhi acknowledged in his autobiography, calling Tolstoy "the greatest apostle of non-violence that the present age has produced". The correspondence between Tolstoy and Gandhi would only last a year, from October 1909 until Tolstoy's death in November 1910, but led Gandhi to give the name Tolstoy Colony to his second ashram