The popular referendum is similar to the initiative in that both are triggered by petitions, but there are important differences. ... Legislative referenda may appear on the ballot in all 50 states. The popular referendum is a device which allows voters to approve or repeal an act of the Legislature.
There were several key social, physical, political, and economic characteristics of the British North America colonies between 1850 and 1860, but the greatest all had to do with the issue of slavery, and if it would be allowed in new states.