https://en.wikipedia.org/wiki/Tool

A tool is an object that can extend an individual's ability to modify features
of the surrounding environment.
Although many animals use simple tools, only human beings, whose use of stone
tools dates back hundreds of millennia, have been observed using tools to make
other tools.
Early tools, made of such materials as stone, bone, and wood, were used for
preparation of food, hunting, manufacture of weapons, and working of materials
to produce clothing and useful artifacts. The development of metalworking made
additional types of tools possible. Harnessing energy sources such as animal
power, wind, or steam, allowed increasingly complex tools to produce an even
larger range of items, with the Industrial Revolution marking an marked
inflection point in the use of tools. The introduction of automation allowed
tools to operate with minimal human supervision, further increasing the
productivity of human labor.
