Elements in the periodic table are grouped as metals, metalloids or semimetals, and nonmetals. The metalloids separate the metals and nonmetals on a periodic table. Also, many periodic table have a stair-step line on the table identifying the element groups.
World War I. First Battle of the Marne begins. On September 6, 1914, some 30 miles northeast of Paris, the French 6th Army under the command of General Michel-Joseph Manoury attacks the right flank of the German 1st Army, beginning the decisive First Battle of the Marne at the end of the first month of World War I.
Introduction. The Battle of the Somme, also known as the Somme Offensive, was one of the largest battles of the First World War. Fought between July 1 and November 1, 1918 near the Somme River in France, it was also one of the bloodiest military battles in history. On the first day alone, the British suffered more than 57,000 casualties, and by the end of the campaign the Allies and Central Powers would lose more than 1.5 million men.