World War I: The First Battle of Passchendaele takes place resulting in the largest single-day loss of life in New Zealand history.

The First Battle of Passchendaele took place on 12 October 1917 during the First World War, in the Ypres Salient in Belgium on the Western Front. The attack was part of the Third Battle of Ypres and was fought west of Passchendaele village. The British had planned to capture the ridges south and…