Wenger is a company that creates the types of knives that were first used after what period?
Swiss Army knife The Swiss Army knife is a pocketknife or multi-tool manufactured by Victorinox AG (and up to 2005 also by Wenger SA). The term "Swiss Army knife" was coined by American soldiers after World War II due to the difficulty they had in pronouncing "Offiziersmesser", the German name.
Vogelheimer Klinge The Vogelheimer Klinge (German: Vogelheim Blade) is an approximately 280,000 year old flint tool, discovered in 1926 during the construction of the Rhine-Herne Canal in Vogelheim, north of the city of Essen. In older publications it is also known as the Klingenschaber von Vogelheim. It was long considered to be the oldest accurately dated artifact in North Rhine-Westphalia and can be found in the .