Biology Lab Safety Rules. Biology lab safety rules are guidelines designed to help keep you safe when experimenting. Some equipment and chemicals in a biology laboratory can cause serious harm. It is always wise to follow all lab safety rules. Don't forget, the most helpful safety rule is to use plain old common sense.
In 1937 statehood for Hawaii was proposed and refused by the U.S. Congressâthe territory's mixed population and distance from the U.S. mainland were among the obstacles. On Dec. 7, 1941, Japanese aircraft made a surprise attack on Pearl Harbor, plunging the United States into World War II.
1 1914â1918 World War I. 2  1914 A Japanese fleet captured the Mariana Islands from Germany without any loss of life. 3  This is notable as the only land action fought during World War I that took place on what is now U.S. soil (Guam and the Northern Mariana Islands).