history of ingenuity

An Oldowan tool, the earliest type of stone tool. These were used by hominins in Africa from 2.6 million years ago up until 1.7 million years ago.
Credit: José-Manuel Benito Álvarez | Creative Commons

A history of ingenuity

Humans are an ingenious species. From the moment someone bashed a rock on the ground to make the first sharp-edged tool, to the development of Mars rovers and the Internet, several key advancements stand out as particularly revolutionary. These are our picks for the 10 most important inventions of all time