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.
battles the first battle of the marne 1914 the first battle of the marne was conducted between 6 12 september 1914 with the outcome bringing to an end the war of movement that had dominated the first world war since the beginning of august instead with the german advance brought to a halt stalemate and trench warfare ensued