People with darker skin colors require more exposure time. Another point to remember is that this natural method does not work equally well at all latitudes and seasons, or in all people. If you are uncertain of the amount of sunshine you need, you can have your vitamin D levels tested.
The 'official' War in Europe began in Poland on September 1, 1939. Some historians have argued that the war began much earlier with the Spanish Civil War but September 1 â¦ st, 1939 is the date accepted when the U.K., France, and Commonwealth nations declared war on Germany in response to the Polish invasion.
Russia readied its troops in support of Serbia, and Germany (allied to Austria-Hungary), invaded Belgium as a means of launching an attack on France. Britain entered the conflict by declaring war on Germany on 4th August 1914. Find out more about how World War 1 started by clicking this link. World War 1 ended at 11am on 11th November 1918 (the eleventh hour of the eleventh day of the eleventh month), when Germany signed the Armistice of Compiegne. Approximately 9 million soldiers were killed and more than 20 million soldiers were injured during the conflict.