Group 4 is a group of elements in the periodic table. It contains the elements titanium (Ti), zirconium (Zr), hafnium (Hf) and rutherfordium (Rf). This group lies in the d-block of the periodic table. The group itself has not acquired a trivial name; it belongs to the broader grouping of the transition metals. The three Group 4 elements that occur naturally are titanium (Ti) , zirconium (Zr) and hafnium (Hf) .
The battle broke out at Concord. Seventy-three British soldiers were killed and over 200 were wounded. The Americans lost 49 soldiers and suffered 39 wounded. Late on the night of April 18th, 1775 British troops departed Boston for Concord and Lexington in pursuit of Colonial arms.
The American Civil War was one of the deadliest wars in American History. As many as 620,000 individuals lost their lives during the Civil War, more than in any other war before or since. Confederate deaths were about 260,000 of which 93,000 were killed in combat, while Union deaths were 360,000 of which 110,000 deaths were in combat. Disease was the major cause of death in the civil war.