Invention Of Toothbrush: Who, When, How?
Every product you use today had a beginning…but who was responsible for the invention of toothbrush? There must be some brains that thought of an idea and tried to design the product. As time went by, other brains gave the idea a thought as well and tired to improve it. This led to evolution stages of the product from the initial simple to a more improved and complex form. This is not an exception for …
