Technological developments throughout history By Urkeo 40,000 BCE When was discovered the fire The control of fire by early humans was a turning point in the technological evolution of human beings 40,000 BCE When were invented stone tools A stone tool is, in the most general sense, any tool made either partially or entirely out of stone. 11,000 BCE Fishing nets 5000 BCE the wheel 2500 BCE abacus 100 paper 1610 galileo´s telescope 1831 electric generator 1858 Steel industry 1879 Incandescent light bulb 1879 first radio 1889 Alternating current 1926 the television 1939 Jet aircraft 1942 Nuclear reactor 1973 Mobile phone 1999 Wi-Fi networks