Steven Johnson's book by the same name (Where Good Ideas Come From 2010) is very inspiring and informative. It chronicles all of key innovations from 1400-2000 in a glossary; where they were created and by whom. In many cases there were multiple creators. It is claearly a fascinating look at the evolution of the modern world we live in. He also captures the creative energy of the early coffee shops, liquid networks, and the slow hunch (i.e Darwin's theory of Evolution) which lead to his epiphany, and serendipity which frequently leads to breakthroughs. I suggest you track it down.