events
The Hindenburg Line is broken by an Allied attack in World War I.

Related Wikipedia articles
Hindenburg Line
Defensive fortification in World War I
The Hindenburg Line was a German defensive position built during the winter of 1916–1917 on the Western Front in France during the First World War. The line ran from Arras to Laffaux, near Soissons on the Aisne. In 1916, the Battle of Verdun and the Battle of the Somme left the…Source: Wikipedia (CC BY-SA)
Battle of St Quentin Canal
1918 battle on the Western Front of World War I
The Battle of St Quentin Canal was a pivotal battle of World War I that began on 29 September 1918 and involved British, Australian and American forces operating as part of the British Fourth Army under the overall command of General Sir Henry Rawlinson. Further north, part of…Source: Wikipedia (CC BY-SA)
September 29
Day of the year
September 29 is the 272nd day of the year in the Gregorian calendar; 93 days remain until the end of the year.Source: Wikipedia (CC BY-SA)