In simple terms, a representative democracy is indeed a democratic government under which all qualified voters participate on leaders to make legislation for them. A good example of that is the US, where we nominate a president and Congress leaders. We as well elect leaders from the state and local institutions.
Greek democracy generated at Athens had been direct, not representative: the certain adult male individual from over age of twenty could participate and that was a responsibility to do so. Democracy officials have been elected in part by the legislature and appointed largely by lottery in a procedure known sortion.
One reason why the U.S govt forced the cherokee to give up there land was because the U.S wanted to move west towards califonia because there was gold there during the ''gold rush''.to answer the second question yes the process did kid of help because it created the suburbs for the settlers that moved west over time.