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.
World War II in Europe. There are several possible dates for the start of World War Two in the Pacific, but in Europe, the war is almost universally agreed to have begun with the Nazi invasion of Poland in 1939. Within two years Hitler had subjugated much of the continent, including a lightning conquest of France.