World War One Diary for Saturday, October 21, 1916:
Western Front: RFC helps engage 184 targets and bombs extensively. Germans bomb Querrieu, Gorbie and Amiens (night October 20-21).
Battle of the Somme: British advance taking 5,000 yards of trenches (with 1,018 PoWs) between Schwaben Redoubt and Le Sars plus 39th Division captures Stuff Trench.
Transylvania: Falkenhayn drives Rumanian Second Army 12 miles across frontier at Törzburg Pass, Austrians 7 miles inside across Bodza Pass.