The date of the last battle is October 1914

Bible Student movement claimed that "...the battle of the great day of God Almighty. The date of the close of that battle" is definitely marked in Scripture as October 1914. It is already in progress, its beginning dating from October, 1874."
The Bible Student movement is the name adopted by a Millennialist[1] Restorationist Christian movement that emerged from the teachings and ministry of Charles Taze Russell, also known as Pastor Russell. Members of the movement have variously referred to themselves as Bible Students, International Bible Students, Associated Bible Students, or Independent Bible Students. The origins of the movement are associated with the formation of Zion's Watch Tower Tract Society in 1881.

Zion's Watch Tower: 23. 15 January 1892