When was the Chinese flag created?

Who was Albert Spier? What American ships did Germany sink in WW1? What 2 countries had the strongest navies in World War 1? How long did it take for the bomb fat boy to drop? How did the enemy defend itself against submarine attacks during World War 1? P H D stand for what? Which country in the conflict does it support? What did the north hope to accomplish in the battle of cold harbor? Why does Grumman argues against the use of lineups primarily by using logos? Who coined the term fog of war? How did Kerensky lost the support? Is Ultimate Surrender fake? What position on a poppy should the leaf be? Who invented the strongbox? Who were the two best generals of the confederacy during the civil war? What was Croatia's involvement in World War 1? What was president Nixons stance on Vietnam? What country has the most hydrogen bombs? How can I sell my WW2 ration books? What country was landed on during d day?

When was the Chinese flag created?