Music was a way for slaves to express their feelings whether it was sorrow, joy, inspiration or hope.
America had increased taxes while spending money fortifying coastlines and potential weakspots from the Russians while the Cold War was going on. More taxes=Higher Expenses=Less unemployment.
Usually demand refers to someone tell someone else what to do, or how to do it. For example "Give me the remote." could be demanding.
The industrial revolution began in Great Britain as it had most coal and iron which enabled it to build factories and machines. It spread from Britain towards Europe, where it mostly developed in Germany and it also spread into the US.
