What were footballs made of in 1914 to 1918?

In 1918 the war to end all wars was called? Where did the longest siege take place in World War 2? What did the red flag at the Alamo mean? Was participation by the us crucial to winning the war? What was the nickname for u.s soldiers in world war 1? Why does France celebrate D Day? Vietcong army? What are the names of the five beaches involved in d-day? Was Jordan involved in the World Wars? What was the weather like during the battle of the somme? Name important dates that happened from the end of ww1 to the end of World War 2? Did knights fight for honor or to be paid? Who opposed Confederacy? What was the war guilt clause of World War 1? Why was general Lloyd fredendall relieved of command? Results of the Battle of Midway? Why was it important that grant invades the south and lays siege to petersburg? What was the role of women on the homefront during World War 1? Are ther cheats for teritory war online? What city was the first that anne heard about being liberated by the british?