energy By eodum2720 2000 BCE chinese first to use coal as an energy source 600 BCE in greece, thales found that rubbing silk and amber caused an electrical charge Dec 24, 1712 first steam engine in england was used to pump water out of coal mines. Dec 13, 1752 ben franklin ties key to a kite during a storm discovering electricy Jun 24, 1835 joseph henry invented the electrical relay Mar 24, 1837 thomas davenport invents the eletrical motor Feb 24, 1883 nikola tesla invents the tesla coil May 24, 1888 tesla demonstrates the first AC eletrical system Apr 24, 1897 joseph john thomson discovers the electron Oct 24, 1920 the federal power commissions is established Apr 24, 1976 first fiber optic cable installed in chicago Aug 24, 2004 bluetooth is created by nokia, IBM, intel, and ericsson
