The British empire formally abolished slavery in its colonies with passage of the Slavery Abolition Act of 1833. The legislation went into effect ON 1st August 1834 whereby all slaves in the British Empire were considered free under British law. Germany entered into World War I on August 1, 1914, when it declared war on Russia. In accordance with its war plan, it ignored Russia and moved first against France–declaring war on August 3 and sending its main armies through Belgium to attack Paris from the north. Bal Gangadhar Tilak was a social reformer, Indian nationalist and freedom fighter. He was an ardent follower of Swaraj and died on 1 August, 1920. On 1st August 1944, The final entry was recorded in the diary of Anne Frank, a Jewish girl who spent two years in hiding during the Nazi occupation of the Netherlands. American author George R.R. Martin published A Game of Thrones, the first installment in his hugely popular fantasy series A Song of Ice and Fire.