Known for `Leon On` among other hits, William Sami Etienne Grigahcine, is who known by his stage name around the world, was set to perform in India as part of a Sunburn Arena tour from February 6 in Kolkata

Scientists think ancient humans wielded a whole litany of tools made from stone, bone and wood. But it`s particularly difficult to find evidence of wooden tools today because wood rots so quickly. Such tools are only preserved in specific environments like in ice, caves or underwater