Knife-like tools were used at least two-and-a-half million years ago , as evidenced by the Oldowan tools.   Originally made of rock, bone, flint , and obsidian , knives have evolved in construction as technology has, with blades being made from bronze , copper , iron , steel , ceramics , and titanium . Many cultures have their unique version of the knife. Due to its role as humankind's first tool, certain cultures have attached spiritual and religious significance to the knife. 
Europa Europa will be performed in Germany for the first time this weekend at the Internationalales Sommerfestival in Hamburg. Karim & Karam will also DJ on Saturday night. More information here.
A kitchen knife is any knife that is intended to be used in food preparation . While much of this work can be accomplished with a few general-purpose knives – notably a large chef's knife , a tough cleaver , and a small paring knife – there are also many specialized knives that are designed for specific tasks. Kitchen knives can be made from several different materials.