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.
Start of WW II   The war start officially in the late 1930's. Hitler invaded Poland, Czech, Assass Loraine and other forbidden areas. Britain started fighting in 1938 whi â¦ le Americas involvement took place in 1942 (December 5) to 1945.t didn't only take place in France. There was just as much fighting in Russia, Africa, the Middle East and at sea. Now, the question becomes WHY was there fighting in France. â¦ The answer is quite simple.