Industrial began as early as the late 70's as a new wave of experimentation, with the advance of technology it became easier for the use of electronic sounds. The coining of the phrase 'Industrial' came from the founding of 'Industrial Records' by early industrial band Throbbing Gristle with the phrase 'Industrial music for Industrial people'.
Of course the genre can draw its roots from Punk, Electronic and generally very Experimental music. With this we can gather that Industrial draws from a wide range of genres coming together. Cabaret Voltaire feature heavily in the early industrial scene, creating loops, physically cutting up the tapes.
With the 70's drawing to a close, came the rapid expansion of the industrial scene into other countries it began with more and more artists picking up on this new sound- more electronic, more making music out of sound almost- with the use of samples. With the event of the 80's the whole genre becamemore and more focus on the 'computer' sound of the effects and we began to see more and more offshoots appear as the genre gained a wider appeal however it did, for the most part still remain underground. We saw heavily controversial arise to attack what they saw as a very over commercial scene- Skinny Puppy releasing music videos intended to shock and cause controversy- hence sealing them as an underground band. Ministry also cropped up around this time as another offshoot of industrial (Industrial Metal) featuring very controversial lyrics often political- indicating another hallmark of the industrial genre- difficult lyrics tackling everything from personal issues to highly political issues.